{"id":20890,"date":"2025-08-12T23:35:29","date_gmt":"2025-08-13T07:35:29","guid":{"rendered":"https:\/\/shengenfab.com\/?p=20890"},"modified":"2025-08-13T00:13:28","modified_gmt":"2025-08-13T08:13:28","slug":"thread-tapping","status":"publish","type":"post","link":"https:\/\/shengenfab.com\/en_gb\/thread-tapping\/","title":{"rendered":"Thread Tapping Explained: Tools, Techniques, and Tips That Work"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"20890\" class=\"elementor elementor-20890\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-30c0dd15 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"30c0dd15\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-40f49731 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"40f49731\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-651b7fd4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"651b7fd4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b434730 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3b434730\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6160d35 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6160d35\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-32faa4e1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"32faa4e1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4f2c84 custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4f2c84\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-6999244a\" data-id=\"6999244a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d4bad1f elementor-widget elementor-widget-text-editor\" data-id=\"d4bad1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Every project needs threads that are strong and reliable. Yet, many teams struggle to keep the accuracy and consistency that precision machining requires. If you want to create perfect threads every time, you must understand the basics of thread tapping. You also need to know the tools and best methods to follow for clean, accurate results.<\/p><p>Want to stop making common tapping mistakes? Please keep reading to learn the steps and tips that will help you get it right.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-099c52d elementor-widget elementor-widget-image\" data-id=\"099c52d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"396\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Thread-Tapping.jpg\" class=\"attachment-large size-large wp-image-20900\" alt=\"Thread Tapping\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Thread-Tapping.jpg 600w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Thread-Tapping-300x198.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Thread-Tapping-18x12.jpg 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ac0dad elementor-widget elementor-widget-text-editor\" data-id=\"8ac0dad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><\/p><h2 class=\"wp-block-heading\">What Is Thread Tapping?<\/h2><p> <\/p><p>Thread tapping is cutting threads inside a hole using a tap. The tap has cutting edges shaped to match the thread profile. As it turns into a drilled hole, it removes grooves to form a threaded path.<\/p><p> <\/p><p>Tapping is used when a component needs to receive a fastener, such as a screw or bolt. The result is a secure, reusable connection. Tapping can be done by hand or machine. Manual tapping is slower but ideal for small batch jobs. <a href=\"https:\/\/shengenfab.com\/en_gb\/cnc-tapping\/\" target=\"_blank\" rel=\"noreferrer noopener\">CNC tapping<\/a> is fast, accurate, and suitable for high-volume production.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Internal vs External Threads<\/h3><p> <\/p><p>Threads come in two basic types: internal and external.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Internal threads<\/strong> are cut inside a hole. These are made using a tap. You find these in parts like brackets, enclosures, and gear housings.<\/li> <li><strong>External threads<\/strong> are cut around the outside of a cylinder. These are made using a die or thread-cutting tool on a lathe. Bolts, screws, and studs all have external threads.<\/li><\/ul><p> <\/p><h3 class=\"wp-block-heading\">Key Thread Standards<\/h3><p> <\/p><p>Thread standards help ensure that parts made in different shops or countries fit together. Here are the most common ones:<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Metric (ISO):<\/strong> Measured in millimeters. Common worldwide. A typical size might be M6 \u00d7 1.0.<\/li> <li><strong>Unified (UNC\/UNF):<\/strong> Used mainly in the US and measured in inches. UNC stands for coarse threads; UNF for fine threads. Example: \u00bc &#8220;-20 UNC.<\/li> <li><strong>BSP (British Standard Pipe):<\/strong> Used for sealing pipe threads. Common in plumbing and fluid systems.<\/li> <li><strong>NPT (National Pipe Thread):<\/strong> Tapered threads for tight sealing in pipe systems. Widely used in the US.<\/li><\/ul><p> <\/p><h3 class=\"wp-block-heading\">Thread Terminology and Geometry<\/h3><p> <\/p><p>Knowing thread terms helps you work more precisely. Here are some basics:<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Major diameter:<\/strong> The outside diameter of the thread.<\/li> <li><strong>Minor diameter:<\/strong> The diameter at the base of the thread groove.<\/li> <li><strong>Pitch:<\/strong> The distance from one thread to the next. Smaller pitch = finer thread.<\/li> <li><strong>Lead:<\/strong> The distance a thread advances in one turn. Same as pitch in single-start threads.<\/li> <li><strong>Thread angle:<\/strong> The angle between thread sides. The most common is 60\u00b0 for metric and unified threads.<\/li><\/ul><p> <\/p><h2 class=\"wp-block-heading\">Types of Thread Tapping Methods<\/h2><p> <\/p><p>Choosing the right tapping method depends on your setup, material, and volume needs. Below are the most used types, each with different strengths and limitations.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Hand Tapping<\/h3><p> <\/p><p>Hand tapping is the most basic method. It uses a tap wrench and a set of taps, usually in three stages: taper, plug, and bottoming.<\/p><p> <\/p><p>This method is slow but very flexible. It&#8217;s great for small jobs, repairs, or when power tools can&#8217;t reach the part. It works well on softer materials like aluminum or mild steel.<\/p><p> <\/p><p>However, it&#8217;s easy to misalign the tap, and breakage is risky if you&#8217;re not careful with force or chip clearing. It&#8217;s also less accurate for thread depth and consistency.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Machine Tapping<\/h3><p> <\/p><p>Machine tapping uses powered equipment like a drill press, tapping head, or CNC machine. The tap rotates and feeds into the hole automatically.<\/p><p> <\/p><p>This method is faster, more consistent, and better for production. It&#8217;s also easier to control feed rate and depth. Machine tapping reduces operator error and allows tighter tolerances.<\/p><p> <\/p><p>Most shops use this method for medium to high volume work. It also handles tougher materials better with proper lubrication and cutting speed.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Form Tapping (Roll Tapping) vs Cut Tapping<\/h3><p> <\/p><p>There are two main ways to create threads\u2014cutting and forming.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Cut tapping<\/strong> removes material to create threads. It works on most metals and is the standard for many jobs. It makes chips, so good chip removal is key.<\/li> <li><strong>Form tapping<\/strong> (roll tapping) displaces material rather than cutting it. It needs ductile metals like aluminum or soft steel. It makes stronger threads because the grain flow isn&#8217;t broken.<\/li><\/ul><p> <\/p><p>Form tapping creates no chips. It also reduces tap wear and improves surface finish. But it requires an accurate hole size and higher torque.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Rigid vs Floating Tapping<\/h3><p> <\/p><p>These refer to how the tap is held and moved during machine tapping.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Rigid tapping<\/strong> locks the tap holder to the spindle. Feed and spindle speed are synced. This gives high precision and is often used in CNC machines.<\/li> <li><strong>Floating tapping<\/strong> uses a tap holder with axial or radial movement. It allows for slight misalignment or feed variation. This is better for older machines or manual setups.<\/li><\/ul><p> <\/p><p>Rigid tapping is faster and more accurate, but it needs perfect alignment. Floating tapping is more forgiving and helps protect the tap from breakage.<\/p><p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-388fa78 elementor-widget elementor-widget-image\" data-id=\"388fa78\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Types-of-Thread-Tapping.jpg\" class=\"attachment-large size-large wp-image-20898\" alt=\"Types of Thread Tapping\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Types-of-Thread-Tapping.jpg 600w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Types-of-Thread-Tapping-300x200.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Types-of-Thread-Tapping-18x12.jpg 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1068fbd elementor-widget elementor-widget-text-editor\" data-id=\"1068fbd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><\/p><h2 class=\"wp-block-heading\">Tapping Tools and Equipment<\/h2><p> <\/p><p>Tapping success depends on using the right tools. Different taps, materials, and holders suit different jobs. This section breaks down what to use and why it matters.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Types of Taps<\/h3><p> <\/p><p>Taps come in three common types, each with a different tip and chip path. These types are often used in stages for better control and cleaner threads:<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Taper Tap:<\/strong> Has a long lead-in with about 8 to 10 threads gradually cutting. It starts easily and centers well. Best for starting holes by hand or for soft materials.<\/li> <li><strong>Plug Tap:<\/strong> Has a medium-length chamfer with 3 to 5 threads cutting. It&#8217;s the most common type and balances ease of starting with full-depth threading.<\/li> <li><strong>Bottoming Tap:<\/strong> Has almost no lead-in, just 1 to 1.5 threads. It&#8217;s made for threading to the bottom of <a href=\"https:\/\/shengenfab.com\/en_gb\/what-are-blind-holes\/\" target=\"_blank\" rel=\"noreferrer noopener\">blind holes<\/a>. Usually used last after a taper or plug tap starts the thread.<\/li><\/ul><p> <\/p><h3 class=\"wp-block-heading\">Tap Materials and Coatings for Different Workpieces<\/h3><p> <\/p><p>The tap&#8217;s base material and coating affect performance, wear, and durability. Here&#8217;s a look at common choices:<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>High-Speed Steel (HSS):<\/strong> Affordable and good for general use on soft to medium metals like aluminum, brass, or mild steel.<\/li> <li><strong>Cobalt Steel:<\/strong> Tougher than HSS. Better for harder materials like stainless steel or cast iron. Lasts longer under heat and stress.<\/li> <li><strong>Carbide:<\/strong> Very hard and wear-resistant. Best for rigid setups and high-speed tapping of abrasive or tough materials. Also, it is brittle, so it is not ideal for hand tapping.<\/li><\/ul><p> <\/p><p><strong>Common Coatings<\/strong>:<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>TiN (Titanium Nitride):<\/strong> Reduces wear, lowers friction, and increases tap life.<\/li> <li><strong>TiCN (Titanium Carbonitride):<\/strong> Stronger and more heat-resistant than TiN.<\/li> <li><strong>TiAlN (Titanium Aluminum Nitride):<\/strong> Great for high-speed and dry tapping of tough alloys.<\/li><\/ul><p> <\/p><h3 class=\"wp-block-heading\">Tap Holders, Chucks, and Adapters<\/h3><p> <\/p><p>Tap holders keep the tap aligned and allow it to rotate smoothly. The type of holder affects accuracy, tool life, and safety.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Rigid Tap Holders:<\/strong> Used in machines with synchronized feed. Ideal for CNC tapping. Provide tight control over depth and alignment.<\/li> <li><strong>Floating Tap Holders:<\/strong> Allow slight movement. Help avoid tap breakage if there&#8217;s misalignment. Useful in manual or older machines.<\/li> <li><strong>Quick-Change Tap Holders:<\/strong> Save time during setup or multi-part jobs. Reduce downtime in production.<\/li><\/ul><p> <\/p><h2 class=\"wp-block-heading\">Preparing for Thread Tapping<\/h2><p> <\/p><p>Good tapping starts before the tap even touches the part. Proper planning and prep make tapping easier, safer, and more accurate. This section covers picking the right sizes and setting things up correctly.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Selecting the Correct Tap Size and Drill Size<\/h3><p> <\/p><p>Before tapping, you must match the tap size to the desired thread. Then, pick the correct drill bit size to make the hole.<\/p><p> <\/p><p>The tap size is based on the screw or bolt that will go into the hole. For example, a \u00bc &#8220;-20 UNC tap is used for a \u00bc&#8221; screw with 20 threads per inch.<\/p><p> <\/p><p>Each tap needs a specific tap drill size. If the hole is too small, the tap might break. If it&#8217;s too big, the threads won&#8217;t grip well.<\/p><p> <\/p><p>Charts are widely available, but here are two common examples:<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>\u00bc &#8220;-20 UNC<\/strong> needs a <strong>#7 drill bit<\/strong> (0.201&#8243;)<\/li> <li><strong>M6 \u00d7 1.0<\/strong> needs a <strong>5.0 mm drill<\/strong>.<\/li><\/ul><p> <\/p><p>Always check the tap type and the material before finalizing the drill size.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Calculating Tap Drill Size Based on Thread Specification<\/h3><p> <\/p><p>You can also calculate the tap drill size if a chart isn&#8217;t handy. Here&#8217;s how:<\/p><p> <\/p><p><strong>For metric threads:<\/strong><\/p><p> <\/p><ul class=\"wp-block-list\"><li>Drill size = Major diameter \u2013 Thread pitch<\/li> <li>Example: M10 \u00d7 1.5 \u2192 10 \u2013 1.5 = 8.5 mm drill<\/li><\/ul><p> <\/p><p><strong>For inch threads:<\/strong><\/p><p> <\/p><ul class=\"wp-block-list\"><li>Drill size = Major diameter \u2013 (1 \u00f7 Threads per inch)<\/li> <li>Example: \u00bd&#8221;-13 \u2192 0.5 \u2013 (1 \u00f7 13) = 0.423&#8243; drill<\/li><\/ul><p> <\/p><p>This gives about 75% thread engagement, which is good for most applications.<\/p><p> <\/p><p>Go slightly larger for hard materials or tough taps. Go smaller only if maximum strength is needed and tapping torque is not a concern.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Workpiece Preparation and Hole Alignment<\/h3><p> <\/p><p>Clean, accurate holes make tapping smoother and safer.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong><a href=\"https:\/\/shengenfab.com\/en_gb\/what-is-deburring\/\" target=\"_blank\" rel=\"noreferrer noopener\">Deburr the hole<\/a><\/strong> to remove sharp edges.<\/li> <li><strong>Chamfer the opening<\/strong> slightly. This helps the tap start straight.<\/li> <li><strong>Check hole depth<\/strong> for blind holes. Leave enough room for the tap tip and chips.<\/li> <li><strong>Align the tap<\/strong> with the hole center. Misalignment can break the tap or strip the threads.<\/li><\/ul><p> <\/p><p>Start the tap with gentle pressure and turn slowly if you&#8217;re tapping by hand. Keep it square to the surface. For machine tapping, confirm spindle alignment before running.<\/p><p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b678817 elementor-widget elementor-widget-image\" data-id=\"b678817\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"375\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Workpiece-Preparation-and-Hole-Alignment-1024x480.jpg\" class=\"attachment-large size-large wp-image-20897\" alt=\"Workpiece Preparation and Hole Alignment\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Workpiece-Preparation-and-Hole-Alignment-1024x480.jpg 1024w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Workpiece-Preparation-and-Hole-Alignment-300x141.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Workpiece-Preparation-and-Hole-Alignment-768x360.jpg 768w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Workpiece-Preparation-and-Hole-Alignment-18x8.jpg 18w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/Workpiece-Preparation-and-Hole-Alignment.jpg 1280w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1069fd1 elementor-widget elementor-widget-text-editor\" data-id=\"1069fd1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><\/p><h2 class=\"wp-block-heading\">Step-by-Step Thread Tapping Process<\/h2><p> <\/p><p>Each step in the tapping process matters. Rushing or skipping steps can lead to broken taps, bad threads, or scrapped parts. Here&#8217;s how to do it right, from start to finish.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Marking and Drilling the Hole<\/h3><p> <\/p><p>Start by marking the hole location clearly. Use a center punch to help guide the drill bit. This keeps the drill from wandering, especially on hard or smooth surfaces.<\/p><p> <\/p><p>Choose the right drill bit for your tap. Use a drill press or CNC machine for best accuracy. If drilling by hand, keep the bit straight and apply steady pressure.<\/p><p> <\/p><p>Drill to the proper depth. For blind holes, ensure extra room at the bottom for chips and the tap tip. After drilling, clean the hole. Remove any burrs or loose chips that could interfere with the tap.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Aligning and Starting the Tap<\/h3><p> <\/p><p>Place the tap into the hole carefully. Ensure it&#8217;s perfectly vertical (or in line with the hole if angled).<\/p><p> <\/p><p>For hand tapping, use a tap guide or square to check alignment. Apply light pressure and turn the tap slowly at first. It should start cutting on its own.<\/p><p> <\/p><p>Stop if the tap feels like it&#8217;s forcing too hard right away. Check the hole size or try a taper tap for easier starting.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Advancing, Clearing Chips, and Maintaining Accuracy<\/h3><p> <\/p><p>Once the tap is engaged, continue turning slowly and evenly. For hand tapping, turn about a half turn forward, then a quarter turn back. This helps break and clear chips.<\/p><p> <\/p><p>Use cutting fluid to reduce friction and extend tool life. It also helps keep threads smooth and clean. Keep checking that the tap stays aligned. Even a slight tilt can cause crooked threads or tap breakage.<\/p><p> <\/p><p>In machine tapping, make sure the feed rate matches the thread pitch. Use proper tool holders to maintain straightness.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Breaking the Chip and Avoiding Jamming<\/h3><p> <\/p><p>Use the reverse-turn method (half-turn forward, quarter-turn back) to break chips when tapping by hand.<\/p><p> <\/p><p>Peck tapping can help with machine tapping. This means retracting the tap after a few turns to clear chips before continuing.<\/p><p> <\/p><p>Chip buildup isn&#8217;t a problem for form taps, but high torque is. Use enough lubricant and the right machine settings to avoid stalling.<\/p><p> <\/p><h2 class=\"wp-block-heading\">Factors Affecting Thread Quality<\/h2><p> <\/p><p>Good threads rely on more than just a sharp tap. Many variables affect how clean, strong, and consistent the threads turn out. Let&#8217;s look at the key ones.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Material Properties and Hardness<\/h3><p> <\/p><p>Some metals are easier to tap than others.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Soft materials<\/strong> like aluminum and brass tap easily but can tear if the tap is dull.<\/li> <li><strong>Harder materials<\/strong> like stainless steel, titanium, or tool steels require more torque and wear down taps faster.<\/li> <li><strong>Brittle materials<\/strong> like cast iron produce fine chips but may crack under stress.<\/li><\/ul><p> <\/p><p>High hardness increases tool wear. Low ductility increases the chance of chipping or poor thread form. Always match the tap type and coating to the material being tapped.<\/p><p> <\/p><p>Also, note that heat-treated parts are harder to tap. Pre-drilling before heat treatment may be a better choice for those.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Tap Geometry and Cutting Edge Condition<\/h3><p> <\/p><p>The shape of the tap and the condition of its cutting edges matter a lot.<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Taps with spiral flutes help lift chips out of blind holes.<\/li> <li>Straight flutes work well for through holes and short cuts.<\/li> <li>Spiral point taps push chips forward, great for machine tapping through holes.<\/li><\/ul><p> <\/p><p>Worn taps lead to poor threads, high torque, and risk of breakage. Dull cutting edges smear the material instead of shearing it cleanly.<\/p><p> <\/p><p>Inspect taps often, especially in production runs. Replace them at the first sign of wear or rough thread finish.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Coolant, Lubrication, and Chip Evacuation<\/h3><p> <\/p><p>Lubrication helps control heat and reduce friction. It also makes threads cleaner and improves tap life.<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Use cutting oil for hand tapping or small batches.<\/li> <li>Use synthetic or water-soluble coolant for CNC or high-speed tapping.<\/li> <li>Apply enough fluid to coat the tap and flush out chips.<\/li><\/ul><p> <\/p><p>Chip removal is just as critical. Chips left in the hole can clog the flutes, jam the tap, or damage the threads. Use compressed air or a tap with chip control features if needed.<\/p><p> <\/p><p>For deep or blind holes, back the tap out periodically or use a spiral-flute tap designed for chip evacuation.<\/p><p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1a7960 elementor-widget elementor-widget-image\" data-id=\"f1a7960\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"334\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/drill-and-tapping.jpg\" class=\"attachment-large size-large wp-image-20896\" alt=\"drill and tapping\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/drill-and-tapping.jpg 500w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/drill-and-tapping-300x200.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2025\/08\/drill-and-tapping-18x12.jpg 18w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d2484e elementor-widget elementor-widget-text-editor\" data-id=\"3d2484e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><\/p><h2 class=\"wp-block-heading\">Common Problems in Thread Tapping<\/h2><p> <\/p><p>Even with planning, tapping can go wrong. Problems with the tool, setup, or material often appear as broken taps or bad threads. Here&#8217;s how to recognize the issues and what causes them.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Tap Breakage<\/h3><p> <\/p><p>This is one of the most frustrating failures in tapping.<\/p><p> <\/p><p>Common causes:<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Using the wrong drill size (hole too small)<\/li> <li>Tapping too fast or with too much torque<\/li> <li>Dull or worn-out tap<\/li> <li>Poor chip removal<\/li> <li>Misalignment during hand tapping<\/li> <li>Hard material without proper lubrication<\/li><\/ul><p> <\/p><p>To avoid this, always check your tap condition, use the right feed rate, and break chips often when tapping by hand. Use floating holders or tap guides to reduce side pressure.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Oversized or Undersized Threads<\/h3><p> <\/p><p>Too loose or tight threads can cause fit issues and weaken the assembly.<\/p><p> <\/p><p><strong>Oversized threads<\/strong> often result from:<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Using the wrong drill bit (too large)<\/li> <li>Worn-out tap<\/li> <li>Excessive tap wear at the cutting edges<\/li><\/ul><p> <\/p><p><strong>Undersized threads<\/strong> may happen due to:<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Drill bit being too small<\/li> <li>A form tap is used without a proper hole size<\/li> <li>Incorrect thread pitch or wrong tap<\/li><\/ul><p> <\/p><p>Always verify hole size with a gauge and confirm tap specs before starting.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Cross-Threading and Misalignment<\/h3><p> <\/p><p>Cross-threading happens when the tap enters the hole at an angle. This leads to damaged threads and weak joints.<\/p><p> <\/p><p>Causes:<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Tapping without proper alignment<\/li> <li>Starting the tap without a chamfer<\/li> <li>Not using a tap guide or square<\/li><\/ul><p> <\/p><p>Use a block or guide to hold the tap straight during the first few turns in hand tapping. In machine tapping, ensure the spindle is square to the hole surface.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Poor Surface Finish or Burr Formation<\/h3><p> <\/p><p>Rough threads or excess burrs reduce thread strength and make assembly harder.<\/p><p> <\/p><p>This can happen due to:<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Worn tap or chipped cutting edge<\/li> <li>Wrong tap coating or material for the job<\/li> <li>Lack of lubrication<\/li> <li>High-speed tapping without proper chip evacuation<\/li><\/ul><p> <\/p><p>Use sharp taps, apply enough coolant, and clean and inspect threads after tapping. If needed, a quick deburr with a countersink tool can clean up the hole.<\/p><p> <\/p><h2 class=\"wp-block-heading\">Solutions and Best Practices<\/h2><p> <\/p><p>To reduce tapping problems and improve thread quality, follow proven methods. These best practices help avoid tool wear, boost consistency, and reduce scrap.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Correct Tap and Drill Size Selection<\/h3><p> <\/p><p>Always match the drill size to the tap and thread standard. Use tap drill charts or do a quick calculation based on thread pitch.<\/p><p> <\/p><ul class=\"wp-block-list\"><li>Too small a hole leads to broken taps.<\/li> <li>Too large a hole leads to weak threads.<\/li><\/ul><p> <\/p><p>If using a form tap, be even more careful with hole size. Form tapping depends on material displacement, not chip removal.<\/p><p> <\/p><p>Check tool markings and confirm with calipers or gauges when unsure. Don&#8217;t guess.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Proper Speed, Feed, and Depth Control<\/h3><p> <\/p><p>Use the right cutting speed for the material. Too fast an increase in heat. Too slow causes rough threads.<\/p><p> <\/p><p><strong>For example:<\/strong><\/p><p> <\/p><ul class=\"wp-block-list\"><li>Aluminum: high speed, low torque<\/li> <li>Stainless steel: lower speed, more torque<\/li><\/ul><p> <\/p><p>In CNC machines, set the correct RPM and feed to match the thread pitch. For rigid tapping, the spindle and feed must stay synced.<\/p><p> <\/p><p>Avoid overfeeding. Go just deep enough for full thread length and then stop. For blind holes, allow for chip space at the bottom.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Lubrication Techniques for Different Materials<\/h3><p> <\/p><p>Use cutting fluid to reduce friction, cool the tool, and clear chips.<\/p><p> <\/p><ul class=\"wp-block-list\"><li><strong>Aluminum:<\/strong> Use light cutting oil or mist coolant<\/li> <li><strong>Steel and stainless:<\/strong> Use sulfur-based or high-pressure cutting oils<\/li> <li><strong>Brass or cast iron:<\/strong> Usually dry, but light oil can help extend tap life<\/li><\/ul><p> <\/p><p>Apply fluid directly to the tap, not just the hole. Reapply for each hole in manual work. For CNC setups, use flood or through-tap coolant if available.<\/p><p> <\/p><h3 class=\"wp-block-heading\">Periodic Tool Inspection and Maintenance<\/h3><p> <\/p><p>Check taps regularly for signs of wear, chipping, or dullness. Worn taps make rough threads and increase the chance of breakage. Clean taps after use. Remove chips stuck in flutes. Store them in labeled holders to prevent mix-ups and protect the cutting edges.<\/p><p> <\/p><p>Replace taps based on thread count, not just feel. In production, track tool life to avoid unexpected failures. Always inspect threaded parts with gauges to confirm quality. Catch issues early before they affect more parts.<\/p><p> <\/p><h2 class=\"wp-block-heading\">Conclusion<\/h2><p> <\/p><p>Thread tapping is a key step in precision machining. From choosing the right tap and drill size to controlling speed, feed, and lubrication\u2014every detail affects the final thread quality. Good prep, clean technique, and tools help avoid breakage, misalignment, and poor threads.<\/p><p> <\/p><p>Need custom tapped metal parts for your next project? We offer CNC tapping, hand tapping, and full metal processing services to meet your design specs. <a href=\"https:\/\/shengenfab.com\/en_gb\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">Please send us your drawings<\/a> to get a fast and accurate quote today.<\/p><p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-71735dbf\" data-id=\"71735dbf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ad6c3b6 elementor-widget elementor-widget-heading\" data-id=\"4ad6c3b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Hey, I'm Kevin Lee<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f249bb5 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"6f249bb5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"640\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp\" class=\"attachment-large size-large wp-image-6422\" alt=\"Kevin Lee\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp 1024w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-300x240.webp 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-768x614.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fa2ff6d elementor-widget elementor-widget-text-editor\" data-id=\"7fa2ff6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><p>For the past 10 years, I&#8217;ve been immersed in various forms of sheet metal fabrication, sharing cool insights here from my experiences across diverse workshops.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acfae3c elementor-align-center elementor-widget elementor-widget-button\" data-id=\"acfae3c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/shengenfab.com\/en_gb\/about-author\/\">\n\t\t\t\t\t\t<span 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value=\"en_gb\"\/><\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3becbb7d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3becbb7d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-38355146 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38355146\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2dfa7c98 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2dfa7c98\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-612199e6 custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"612199e6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-1efdad32\" data-id=\"1efdad32\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-76364dff\" data-id=\"76364dff\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-330f8911 custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"330f8911\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-21e7a996\" data-id=\"21e7a996\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-712f7f7a elementor-widget elementor-widget-image\" data-id=\"712f7f7a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"640\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp\" class=\"attachment-large size-large wp-image-6422\" alt=\"Kevin Lee\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee.webp 1024w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-300x240.webp 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2023\/12\/Kevin-Lee-768x614.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-17fe4921\" data-id=\"17fe4921\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ffba27e elementor-widget elementor-widget-heading\" data-id=\"7ffba27e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Kevin Lee<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c585f7b elementor-widget elementor-widget-text-editor\" data-id=\"6c585f7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>I have over ten years of professional experience in sheet metal fabrication, specializing in laser cutting, bending, welding, and surface treatment techniques. As the Technical Director at Shengen, I am committed to solving complex manufacturing challenges and driving innovation and quality in each project.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-23a5ab20\" data-id=\"23a5ab20\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-47b4f768 custom-ele-section-css elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"47b4f768\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-752c7f51\" data-id=\"752c7f51\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-295bd721 elementor-widget elementor-widget-heading\" data-id=\"295bd721\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Related Resource<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50344057 uael-post__link-complete-yes uael-equal__height-yes elementor-widget elementor-widget-uael-posts\" data-id=\"50344057\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_slides_to_show&quot;:4,&quot;classic_slides_to_show_tablet&quot;:2,&quot;classic_slides_to_show_mobile&quot;:1,&quot;classic_pagination_type&quot;:&quot;ajax&quot;,&quot;classic_show_filters&quot;:&quot;no&quot;}\" data-widget_type=\"uael-posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"uael-post__header\">\n\t\t\t\t\t<\/div>\n\t\t<div class=\"uael-post__body\">\n\t\t\t\n\t\t\n\t\t<div class=\"uael-blog-terms-position- uael-post-image-top uael-post-grid uael-posts\" data-query-type=\"custom\" data-structure=\"normal\" data-layout=\"\" data-page=\"20890\" data-skin=\"classic\" data-filter-default=\"\" data-offset-top=\"30\" >\n\n\t\t\t\t\t\t\t<div class=\"uael-post-grid__inner uael-post__columns-4 uael-post__columns-tablet-2 uael-post__columns-mobile-1\">\n\t\t\t\n<div class=\"uael-post-wrapper   blog\">\n\t<div class=\"uael-post__bg-wrap uael-bg-wrap-disabled\">\n\n\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/fingerprint-resistant-stainless-steel\/\" target=\"_self\" class=\"uael-post__complete-box-overlay\" aria-label=\"Link Complete Box\"><\/a>\n\t\t\t\t\n\t\t<div class=\"uael-post__inner-wrap uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/fingerprint-resistant-stainless-steel\/\" target=\"_blank\" title=\"Fingerprint Resistant Stainless Steel: How It Works,and How to Choose\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"409\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/Why-Surface-Appearance-Changes-Product-Perception-1.jpg\" class=\"attachment-full size-full wp-image-24454\" alt=\"Why Surface Appearance Changes Product Perception\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/Why-Surface-Appearance-Changes-Product-Perception-1.jpg 750w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/Why-Surface-Appearance-Changes-Product-Perception-1-300x164.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/Why-Surface-Appearance-Changes-Product-Perception-1-18x10.jpg 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/fingerprint-resistant-stainless-steel\/\" target=\"_blank\">\n\t\t\t\tFingerprint Resistant Stainless Steel: How It Works,and How to Choose\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t12 March 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewbox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tNo Comments\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" href=\"https:\/\/shengenfab.com\/en_gb\/fingerprint-resistant-stainless-steel\/\" target=\"_blank\" aria-labelledby=\"uael-post-24442\">\n\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-button-text\" id=\"uael-post-24442\">Readmore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n<div class=\"uael-post-wrapper   blog\">\n\t<div class=\"uael-post__bg-wrap uael-bg-wrap-disabled\">\n\n\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/oem-vs-contract-manufacturing\/\" target=\"_self\" class=\"uael-post__complete-box-overlay\" aria-label=\"Link Complete Box\"><\/a>\n\t\t\t\t\n\t\t<div class=\"uael-post__inner-wrap uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/oem-vs-contract-manufacturing\/\" target=\"_blank\" title=\"OEM vs Contract Manufacturing: How to Choose the Right Model for Your Project\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"409\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/A-Finished-Drawing-Does-Not-Always-Mean-a-Production-Safe-Job.jpg\" class=\"attachment-full size-full wp-image-24371\" alt=\"A Finished Drawing Does Not Always Mean a Production Safe Job\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/A-Finished-Drawing-Does-Not-Always-Mean-a-Production-Safe-Job.jpg 750w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/A-Finished-Drawing-Does-Not-Always-Mean-a-Production-Safe-Job-300x164.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/03\/A-Finished-Drawing-Does-Not-Always-Mean-a-Production-Safe-Job-18x10.jpg 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/oem-vs-contract-manufacturing\/\" target=\"_blank\">\n\t\t\t\tOEM vs Contract Manufacturing: How to Choose the Right Model for Your Project\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t9 March 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewbox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tNo Comments\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" href=\"https:\/\/shengenfab.com\/en_gb\/oem-vs-contract-manufacturing\/\" target=\"_blank\" aria-labelledby=\"uael-post-24369\">\n\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-button-text\" id=\"uael-post-24369\">Readmore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n<div class=\"uael-post-wrapper   blog\">\n\t<div class=\"uael-post__bg-wrap uael-bg-wrap-disabled\">\n\n\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/setup-cost-vs-unit-cost-in-sheet-metal-manufacturing\/\" target=\"_self\" class=\"uael-post__complete-box-overlay\" aria-label=\"Link Complete Box\"><\/a>\n\t\t\t\t\n\t\t<div class=\"uael-post__inner-wrap uael-inner-wrap-disabled\">\n\n\t\t\t\t<div class=\"uael-post__thumbnail\">\n\t\t\t\n\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/setup-cost-vs-unit-cost-in-sheet-metal-manufacturing\/\" target=\"_blank\" title=\"Setup Cost vs Unit Cost in Sheet Metal Manufacturing\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"500\" src=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/02\/Setup-Cost-vs-Unit-Cost.jpg\" class=\"attachment-full size-full wp-image-24239\" alt=\"Setup Cost vs Unit Cost\" srcset=\"https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/02\/Setup-Cost-vs-Unit-Cost.jpg 750w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/02\/Setup-Cost-vs-Unit-Cost-300x200.jpg 300w, https:\/\/shengenfab.com\/wp-content\/uploads\/2026\/02\/Setup-Cost-vs-Unit-Cost-18x12.jpg 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\n\t\t\t<div class=\"uael-post__content-wrap uael-content-wrap-disabled\">\n\t\t\t\t\t<h3 class=\"uael-post__title\">\n\n\t\t\n\t\t\t\t\t\t<a href=\"https:\/\/shengenfab.com\/en_gb\/setup-cost-vs-unit-cost-in-sheet-metal-manufacturing\/\" target=\"_blank\">\n\t\t\t\tSetup Cost vs Unit Cost in Sheet Metal Manufacturing\t\t\t<\/a>\n\n\t\t\t\t<\/h3>\n\t\t\t\t\t<div class=\"uael-post__meta-data\">\n\t\t\t\t\t<span class=\"uael-post__date\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-calendar\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\n\t\t\t6 February 2026\t\t<\/span>\n\t\t\t\t<span class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewbox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tNo Comments\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" 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class=\"uael-post__comments\">\n\t\t\t\t\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fa-comments\" viewbox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 192c0-88.4-93.1-160-208-160S0 103.6 0 192c0 34.3 14.1 65.9 38 92-13.4 30.2-35.5 54.2-35.8 54.5-2.2 2.3-2.8 5.7-1.5 8.7S4.8 352 8 352c36.6 0 66.9-12.3 88.7-25 32.2 15.7 70.3 25 111.3 25 114.9 0 208-71.6 208-160zm122 220c23.9-26 38-57.7 38-92 0-66.9-53.5-124.2-129.3-148.1.9 6.6 1.3 13.3 1.3 20.1 0 105.9-107.7 192-240 192-10.8 0-21.3-.8-31.7-1.9C207.8 439.6 281.8 480 368 480c41 0 79.1-9.2 111.3-25 21.8 12.7 52.1 25 88.7 25 3.2 0 6.1-1.9 7.3-4.8 1.3-2.9.7-6.3-1.5-8.7-.3-.3-22.4-24.2-35.8-54.5z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\tNo Comments\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<a class=\"uael-post__read-more elementor-button\" href=\"https:\/\/shengenfab.com\/en_gb\/sheet-metal-feature-proximity-rules-for-reliable-forming\/\" target=\"_blank\" aria-labelledby=\"uael-post-24157\">\n\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-button-text\" id=\"uael-post-24157\">Readmore<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t<div class=\"uael-post__footer\">\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Thread tapping is cutting threads inside a hole using a tap. The tap has cutting edges shaped to match the thread profile. As it turns into a drilled hole, it removes grooves to form a threaded path.<\/p>","protected":false},"author":1,"featured_media":20899,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[19],"class_list":["post-20890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-cnc-machining"],"_links":{"self":[{"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/posts\/20890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/comments?post=20890"}],"version-history":[{"count":0,"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/posts\/20890\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/media\/20899"}],"wp:attachment":[{"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/media?parent=20890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/categories?post=20890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shengenfab.com\/en_gb\/wp-json\/wp\/v2\/tags?post=20890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}