{"id":3195,"date":"2026-06-08T09:04:35","date_gmt":"2026-06-08T09:04:35","guid":{"rendered":"https:\/\/hycuttingtools.com\/?p=3195"},"modified":"2026-08-17T16:42:05","modified_gmt":"2026-08-17T16:42:05","slug":"corner-radius-end-mill","status":"publish","type":"post","link":"https:\/\/hycuttingtools.com\/vi\/corner-radius-end-mill\/","title":{"rendered":"Corner Radius End Mill vs Square End Mill: Which One Should You Choose?"},"content":{"rendered":"<style>\n  .hy-blog-article{<br \/>\n    max-width:980px;<br \/>\n    margin:0 auto;<br \/>\n    font-family:Arial, Helvetica, sans-serif;<br \/>\n    color:#1f2a37;<br \/>\n    line-height:1.8;<br \/>\n    font-size:16px;<br \/>\n  }<\/p>\n<p>  .hy-blog-article h2{<br \/>\n    font-size:26px;<br \/>\n    line-height:1.4;<br \/>\n    color:#163a63;<br \/>\n    margin:38px 0 14px;<br \/>\n  }<\/p>\n<p>  .hy-blog-article h3{<br \/>\n    font-size:20px;<br \/>\n    line-height:1.5;<br \/>\n    color:#163a63;<br \/>\n    margin:26px 0 10px;<br \/>\n  }<\/p>\n<p>  .hy-blog-article p{<br \/>\n    margin:0 0 16px;<br \/>\n    color:#374151;<br \/>\n  }<\/p>\n<p>  .hy-blog-article ul{<br \/>\n    margin:0 0 18px 20px;<br \/>\n    padding:0;<br \/>\n  }<\/p>\n<p>  .hy-blog-article li{<br \/>\n    margin-bottom:8px;<br \/>\n    color:#374151;<br \/>\n  }<\/p>\n<p>  .hy-blog-article a{<br \/>\n    color:#163a63;<br \/>\n    text-decoration:underline;<br \/>\n  }<\/p>\n<p>  .hy-toc{<br \/>\n    border:1px solid #d9dde3;<br \/>\n    background:#f9fbfc;<br \/>\n    padding:18px 22px;<br \/>\n    margin:24px 0 30px;<br \/>\n  }<\/p>\n<p>  .hy-toc h2{<br \/>\n    font-size:20px;<br \/>\n    margin:0 0 12px;<br \/>\n  }<\/p>\n<p>  .hy-toc ol{<br \/>\n    margin:0;<br \/>\n    padding-left:20px;<br \/>\n  }<\/p>\n<p>  .hy-toc li{<br \/>\n    margin-bottom:8px;<br \/>\n  }<\/p>\n<p>  .hy-note-box{<br \/>\n    border-left:4px solid #163a63;<br \/>\n    background:#f7f9fc;<br \/>\n    padding:14px 18px;<br \/>\n    margin:22px 0;<br \/>\n    color:#374151;<br \/>\n  }<\/p>\n<p>  .hy-table-wrap{<br \/>\n    margin:22px 0 28px;<br \/>\n    overflow-x:auto;<br \/>\n    border:none;<br \/>\n  }<\/p>\n<p>  .hy-table{<br \/>\n    width:100%;<br \/>\n    border-collapse:collapse;<br \/>\n    font-size:14px;<br \/>\n    color:#333;<br \/>\n    min-width:760px;<br \/>\n  }<\/p>\n<p>  .hy-table th,<br \/>\n  .hy-table td{<br \/>\n    border:1px solid #9aa4b2;<br \/>\n    padding:10px 12px;<br \/>\n    vertical-align:top;<br \/>\n  }<\/p>\n<p>  .hy-table th{<br \/>\n    background:#f2f4f7;<br \/>\n    color:#1f2a37;<br \/>\n    font-weight:700;<br \/>\n  }<\/p>\n<p>  @media (max-width:768px){<br \/>\n    .hy-blog-article h2{<br \/>\n      font-size:22px;<br \/>\n    }<\/p>\n<p>    .hy-blog-article h3{<br \/>\n      font-size:18px;<br \/>\n    }<br \/>\n  }<br \/>\n<\/style>\n<div class=\"hy-blog-article\">\n<p>A <strong>corner radius end mill<\/strong> is often used when a square end mill chips too easily,<br \/>\nwears too fast, or leaves an unstable surface finish in steel, stainless steel, mold steel, and other demanding materials.<\/p>\n<p>Compared with a sharp square corner, a corner radius design adds a small radius to the cutting edge.<br \/>\nThis helps improve edge strength, reduce corner chipping, and support more stable cutting in many CNC milling applications.<\/p>\n<p>However, a corner radius end mill is not always the best choice.<br \/>\nIf the part requires a sharp internal corner, or if the radius size is not matched correctly, the tool may not meet the part geometry requirements.<\/p>\n<p>In this guide, we explain when to use a corner radius end mill, how it compares with a square end mill,<br \/>\nand how to choose the right corner radius size for better tool life and surface finish.<\/p>\n<div class=\"hy-toc\">\n<h2>M\u1ee5c l\u1ee5c<\/h2>\n<ol>\n<li><a href=\"#what-is-a-corner-radius-end-mill\">What is a corner radius end mill?<\/a><\/li>\n<li><a href=\"#corner-radius-end-mill-vs-square-end-mill\">Corner radius end mill vs square end mill<\/a><\/li>\n<li><a href=\"#why-corner-radius-helps-improve-edge-strength\">Why corner radius helps improve edge strength<\/a><\/li>\n<li><a href=\"#when-should-you-use-a-corner-radius-end-mill\">When should you use a corner radius end mill?<\/a><\/li>\n<li><a href=\"#when-is-a-square-end-mill-still-better\">When is a square end mill still better?<\/a><\/li>\n<li><a href=\"#how-to-choose-the-right-corner-radius-size\">How to choose the right corner radius size<\/a><\/li>\n<li><a href=\"#application-selection-table\">Application selection table<\/a><\/li>\n<li><a href=\"#common-mistakes-to-avoid\">Common mistakes to avoid<\/a><\/li>\n<li><a href=\"#final-recommendation\">Final recommendation<\/a><\/li>\n<\/ol>\n<\/div>\n<h2 id=\"what-is-a-corner-radius-end-mill\">What Is a Corner Radius End Mill?<\/h2>\n<p>A <strong>corner radius end mill<\/strong> is a carbide end mill with a small radius at the corner of the cutting edge.<br \/>\nIt is different from a square end mill, which has a sharp 90-degree corner.<\/p>\n<p>The radius may look small, but it can make a significant difference in cutting stability and tool life.<br \/>\nThe rounded corner helps distribute cutting stress more smoothly and reduces the risk of small edge fractures.<\/p>\n<p>Corner radius end mills are commonly used in steel, stainless steel, alloy steel, mold steel,<br \/>\nand other materials where tool edge strength and surface finish are important.<\/p>\n<p>They are especially useful in side milling, profiling, finishing, semi-finishing, and applications where a sharp internal corner is not required.<\/p>\n<h2 id=\"corner-radius-end-mill-vs-square-end-mill\">Corner Radius End Mill vs Square End Mill<\/h2>\n<p>Both square end mills and corner radius end mills are widely used in CNC milling.<br \/>\nThe right choice depends on part geometry, material, tool life requirements, and surface finish expectations.<\/p>\n<div class=\"hy-table-wrap\">\n<table class=\"hy-table\">\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Square End Mill<\/th>\n<th>Corner Radius End Mill<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Corner Shape<\/strong><\/td>\n<td>Sharp 90-degree corner<\/td>\n<td>Small radius at the cutting corner<\/td>\n<\/tr>\n<tr>\n<td><strong>Corner Strength<\/strong><\/td>\n<td>Lower<\/td>\n<td>Higher<\/td>\n<\/tr>\n<tr>\n<td><strong>Edge Chipping Risk<\/strong><\/td>\n<td>Higher in tough materials<\/td>\n<td>Lower in many stable applications<\/td>\n<\/tr>\n<tr>\n<td><strong>Tool Life<\/strong><\/td>\n<td>Can be shorter under heavy corner load<\/td>\n<td>Often longer when radius is suitable<\/td>\n<\/tr>\n<tr>\n<td><strong>Sharp Internal Corners<\/strong><\/td>\n<td>Better choice<\/td>\n<td>Not suitable if a sharp corner is required<\/td>\n<\/tr>\n<tr>\n<td><strong>Surface Finish<\/strong><\/td>\n<td>Depends heavily on setup and edge condition<\/td>\n<td>Often more stable in finishing and profiling<\/td>\n<\/tr>\n<tr>\n<td><strong>Best Use<\/strong><\/td>\n<td>Slots, sharp corners, flat-bottom features<\/td>\n<td>Steel, mold steel, side milling, finishing, longer tool life<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div style=\"margin: 34px 0; border: 1px solid #d7e1ec; border-radius: 18px; background: #f8fbff; overflow: hidden; box-shadow: 0 8px 24px rgba(22,58,99,0.07);\">\n<\/tbody>\n<\/table>\n<\/div>\n<div style=\"margin:32px 0; text-align:center;\">\n  <img decoding=\"async\" class=\"lazyload\" data-src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/06\/Corner-Radius-End-Mill-vs-Square-End-Mill-Comparison.png\"\n    src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\"\n    alt=\"corner radius end mill vs square end mill\"\n    title=\"Corner Radius End Mill vs Square End Mill Comparison\"\n    style=\"max-width:100%; height:auto; display:block; margin:0 auto; border-radius:14px; box-shadow:0 10px 28px rgba(22,58,99,0.10);\"\n  \/><noscript><img decoding=\"async\" src=\"https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/06\/Corner-Radius-End-Mill-vs-Square-End-Mill-Comparison.png\" alt=\"corner radius end mill vs square end mill\" title=\"Corner Radius End Mill vs Square End Mill Comparison\" style=\"max-width:100%; height:auto; display:block; margin:0 auto; border-radius:14px; box-shadow:0 10px 28px rgba(22,58,99,0.10);\"><\/noscript><\/p>\n<p style=\"margin:10px auto 0; max-width:860px; font-size:14px; line-height:1.6; color:#6b7280; text-align:center;\">\n    A corner radius end mill helps reinforce the cutting edge and reduce chipping compared with a sharp square end mill in many steel, stainless steel, and mold steel milling applications.\n  <\/p>\n<\/div>\n<div style=\"margin:34px 0; border:1px solid #d7e1ec; border-radius:18px; background:#f8fbff; overflow:hidden; box-shadow:0 8px 24px rgba(22,58,99,0.07);\">\n<div style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 20px; padding: 24px 26px;\">\n<div style=\"width: 58px; height: 58px; min-width: 58px; border-radius: 16px; background: #163a63; color: #ffffff; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: bold; box-shadow: 0 6px 16px rgba(22,58,99,0.18);\">R<\/div>\n<div style=\"flex: 1; min-width: 250px;\">\n<div style=\"font-size: 12px; font-weight: bold; letter-spacing: 0.08em; text-transform: uppercase; color: #52708f; margin-bottom: 6px;\">Quick Tool Selection<\/div>\n<h3 style=\"margin: 0 0 8px 0; font-size: 24px; line-height: 1.35; color: #163a63;\">Not Sure If You Need a Corner Radius End Mill?<\/h3>\n<p style=\"margin: 0; font-size: 15px; line-height: 1.7; color: #374151;\">Send us your material, hardness, cutter diameter, part geometry, and machining operation.<br \/>\nWe can help check whether a corner radius end mill or a square end mill is more suitable.<\/p>\n<\/div>\n<div style=\"min-width: 190px;\"><a style=\"display: block; text-align: center; padding: 13px 20px; border-radius: 10px; background: #163a63; color: #ffffff; text-decoration: none; font-size: 15px; font-weight: bold; box-shadow: 0 6px 16px rgba(22,58,99,0.18);\" href=\"https:\/\/hycuttingtools.com\/vi\/contact\/\">Ask for Suggestion<br \/>\n<\/a><\/p>\n<div style=\"margin-top: 8px; font-size: 12px; color: #6b7280; text-align: center;\">For steel, stainless steel, and mold steel milling<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>A square end mill is useful when the part requires sharp internal corners.<br \/>\nA corner radius end mill is often better when tool life, edge strength, and stable surface finish are more important than a sharp corner.<\/p>\n<h2 id=\"why-corner-radius-helps-improve-edge-strength\">Why Corner Radius Helps Improve Edge Strength<\/h2>\n<p>The corner of an end mill is one of the most highly loaded areas during cutting.<br \/>\nOn a square end mill, the sharp corner can be fragile, especially when machining harder or tougher materials.<\/p>\n<p>A corner radius helps reinforce this area.<br \/>\nInstead of concentrating cutting stress at one sharp point, the radius spreads the load across a larger edge area.<\/p>\n<p>This can help reduce micro-chipping, improve wear resistance, and make tool life more predictable.<br \/>\nIt can also improve surface finish when the setup is stable and cutting parameters are suitable.<\/p>\n<p>For materials such as steel, stainless steel, and mold steel, this extra edge strength can be very useful.<br \/>\nYou can also review our guide on <a href=\"https:\/\/hycuttingtools.com\/vi\/4-flute-carbide-end-mill\/\">4 flute carbide end mills for steel and stainless steel<\/a>\u00a0for more information about rigidity and stable cutting.<\/p>\n<p>For additional background on milling tool selection and machining different materials, you can also review this external guide on <a href=\"https:\/\/www.sandvik.coromant.com\/en-us\/knowledge\/milling\/milling-different-materials\" target=\"_blank\" rel=\"noopener\">milling different workpiece materials<\/a>.<\/p>\n<h2 id=\"when-should-you-use-a-corner-radius-end-mill\">When Should You Use a Corner Radius End Mill?<\/h2>\n<p>You can also review our <a href=\"https:\/\/hycuttingtools.com\/vi\/solid-carbide-end-mills\/hrc55-70-square-ball-nose-corner-radius\/\">corner radius carbide end mill options<\/a>\u00a0to match the tool geometry with your material, hardness, and machining requirements.<\/p>\n<p>A corner radius end mill is a good choice when the application requires better corner strength,<br \/>\nlonger tool life, or more stable surface finish.<\/p>\n<h3>Steel Side Milling<\/h3>\n<p>In steel side milling, the tool corner often carries significant cutting load.<br \/>\nA corner radius can help reduce corner chipping and improve tool durability.<\/p>\n<h3>Stainless Steel Milling<\/h3>\n<p>Stainless steel can generate heat, work hardening, and unstable cutting forces.<br \/>\nA corner radius end mill may help improve edge strength, but coating, rigidity, and cutting strategy are still important.<\/p>\n<p>For more details, you can read our guide on <a href=\"https:\/\/hycuttingtools.com\/vi\/end-mill-for-stainless-steel\/\">choosing an end mill for stainless steel<\/a>.<\/p>\n<h3>Mold Steel and Die Machining<\/h3>\n<p>Mold steel applications often require better tool life and stable finishing performance.<br \/>\nA corner radius design can be useful when the part geometry allows a radius at the machined corner.<\/p>\n<h3>Profiling and Finishing<\/h3>\n<p>In profiling and finishing, a corner radius end mill can help maintain smoother cutting and reduce the risk of visible edge damage.<\/p>\n<h3>Applications with Edge Chipping Problems<\/h3>\n<p>If a square end mill chips too quickly at the corner, switching to a corner radius design may help improve stability.<\/p>\n<h2 id=\"when-is-a-square-end-mill-still-better\">When Is a Square End Mill Still Better?<\/h2>\n<p>A corner radius end mill is useful, but it is not always the correct choice.<br \/>\nIn some cases, a square end mill is still required.<\/p>\n<h3>Sharp Internal Corners<\/h3>\n<p>If the part drawing requires a sharp internal corner, a square end mill is usually the better choice.<br \/>\nA corner radius tool will leave a radius, which may not meet the part requirement.<\/p>\n<h3>Flat Bottom Features with Sharp Edges<\/h3>\n<p>For some pockets, slots, or flat-bottom features, the required geometry may call for a sharp corner.<\/p>\n<h3>Very Small Features<\/h3>\n<p>In small features, even a small radius may affect the final shape.<br \/>\nAlways check the drawing tolerance before changing from square to corner radius.<\/p>\n<h3>When Radius Size Is Not Controlled<\/h3>\n<p>A corner radius must match the application.<br \/>\nIf the radius is too large, it may create geometry problems or increase cutting contact more than expected.<\/p>\n<h2 id=\"how-to-choose-the-right-corner-radius-size\">How to Choose the Right Corner Radius Size<\/h2>\n<p>Choosing the right corner radius size is important.<br \/>\nA larger radius can improve edge strength, but it may not fit every part geometry.<\/p>\n<h3>Check the Part Drawing First<\/h3>\n<p>Before selecting a radius, check whether the machined feature allows a corner radius.<br \/>\nIf the drawing requires a sharp corner, a corner radius tool may not be acceptable.<\/p>\n<h3>Match Radius to Tool Diameter<\/h3>\n<p>The radius should be reasonable for the tool diameter.<br \/>\nA very large radius on a small tool may change cutting behavior and increase tool contact.<\/p>\n<h3>Consider Material Hardness<\/h3>\n<p>Harder materials often benefit from stronger edge support.<br \/>\nIn these cases, a suitable corner radius may help reduce chipping and improve tool life.<\/p>\n<h3>Consider Finishing Requirements<\/h3>\n<p>For finishing, the radius should support stable cutting without leaving unwanted marks or geometry changes.<\/p>\n<h3>Do Not Choose Radius Only by Habit<\/h3>\n<p>The best radius depends on material, operation type, tool diameter, cutting depth, and part requirements.<\/p>\n<h2 id=\"application-selection-table\">Application Selection Table<\/h2>\n<p>The table below gives a practical overview of when a corner radius end mill is usually suitable.<\/p>\n<div class=\"hy-table-wrap\">\n<table class=\"hy-table\">\n<thead>\n<tr>\n<th>\u1ee8ng d\u1ee5ng<\/th>\n<th>Use Corner Radius?<\/th>\n<th>Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Steel side milling<\/td>\n<td>Yes<\/td>\n<td>Helps improve edge strength and tool life.<\/td>\n<\/tr>\n<tr>\n<td>Stainless steel finishing<\/td>\n<td>Often yes<\/td>\n<td>Can help reduce edge chipping when setup is stable.<\/td>\n<\/tr>\n<tr>\n<td>Mold steel machining<\/td>\n<td>Yes<\/td>\n<td>Useful when tool life and stable finishing are important.<\/td>\n<\/tr>\n<tr>\n<td>Sharp internal corner<\/td>\n<td>No<\/td>\n<td>Square end mill may be required by the drawing.<\/td>\n<\/tr>\n<tr>\n<td>Flat-bottom slot with sharp corner<\/td>\n<td>Usually no<\/td>\n<td>Check part geometry before using a radius tool.<\/td>\n<\/tr>\n<tr>\n<td>Profiling<\/td>\n<td>Yes<\/td>\n<td>Can support smoother cutting and better corner durability.<\/td>\n<\/tr>\n<tr>\n<td>Long overhang cutting<\/td>\n<td>Be careful<\/td>\n<td>Radius helps edge strength, but setup rigidity is still critical.<\/td>\n<\/tr>\n<tr>\n<td>Heavy roughing<\/td>\n<td>Depends<\/td>\n<td>Radius size, chip load, and machine rigidity must be checked.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"hy-note-box\">If tool vibration or surface marks are also a concern, you may want to review our guide on how to<br \/>\n<a href=\"https:\/\/hycuttingtools.com\/vi\/reduce-chatter-in-end-milling\/\">reduce chatter in end milling<\/a>.<\/div>\n<h2 id=\"common-mistakes-to-avoid\">Common Mistakes to Avoid<\/h2>\n<h3>Using Corner Radius When a Sharp Corner Is Required<\/h3>\n<p>This is the most basic mistake.<br \/>\nA corner radius end mill cannot create a perfectly sharp internal corner.<\/p>\n<h3>Choosing a Radius That Is Too Large<\/h3>\n<p>A larger radius can improve strength, but it may also affect part geometry or cutting contact.<br \/>\nThe radius must match the application.<\/p>\n<h3>Ignoring Tool Overhang<\/h3>\n<p>A stronger corner does not fix a weak setup.<br \/>\nIf tool overhang is too long, chatter and deflection can still happen.<\/p>\n<h3>Using the Same Tool for Every Material<\/h3>\n<p>Steel, stainless steel, aluminum, and mold steel may need different flute designs, coatings, and edge preparations.<\/p>\n<h3>Running a Worn Tool Too Long<\/h3>\n<p>A worn radius edge can still chip, rub, or produce poor finish.<br \/>\nTool condition should be checked regularly.<\/p>\n<h3>Ignoring Speeds and Feeds<\/h3>\n<p>Tool geometry is only one part of the process.<br \/>\nCutting parameters also affect tool life and surface finish.<\/p>\n<p>You can combine tool selection with our <a href=\"https:\/\/hycuttingtools.com\/vi\/carbide-end-mill-speeds-and-feeds-guide\/\">carbide end mill speeds and feeds guide<\/a>\u00a0for a more practical starting point.<\/p>\n<h2 id=\"final-recommendation\">Final Recommendation<\/h2>\n<p>A <strong>corner radius end mill<\/strong> is a practical choice when you need better edge strength,\u00a0longer tool life, and more stable surface finish.<\/p>\n<p>It is often useful for steel, stainless steel, mold steel, profiling, side milling, and finishing applications.<\/p>\n<p>However, it is not a universal replacement for a square end mill.<br \/>\nIf the part requires a sharp internal corner, a square end mill may still be necessary.<\/p>\n<p>Before choosing a corner radius end mill, check these points:<\/p>\n<ul>\n<li>part drawing requirements<\/li>\n<li>material type and hardness<\/li>\n<li>tool diameter<\/li>\n<li>corner radius size<\/li>\n<li>operation type<\/li>\n<li>tool overhang<\/li>\n<li>holder rigidity<\/li>\n<li>surface finish requirement<\/li>\n<\/ul>\n<p>The best choice comes from matching the tool geometry, material, machine, and machining strategy together.<\/p>\n<div style=\"margin: 44px 0 0; border-radius: 20px; overflow: hidden; background: #ffffff; border: 1px solid #d7e1ec; box-shadow: 0 14px 36px rgba(22,58,99,0.10);\">\n<div style=\"background: linear-gradient(135deg,#163a63 0%,#24527f 100%); padding: 26px 30px; color: #ffffff;\">\n<div style=\"font-size: 13px; font-weight: bold; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.85; margin-bottom: 8px;\">Tool Selection Support<\/div>\n<h3 style=\"margin: 0; font-size: 30px; line-height: 1.3; color: #ffffff;\">Need Help Choosing the Right Corner Radius End Mill?<\/h3>\n<p style=\"margin: 12px 0 0; font-size: 16px; line-height: 1.75; color: #e8f0f8;\">Share your machining details with us. We can help suggest a suitable carbide end mill and a practical starting cutting strategy for your application.<\/p>\n<\/div>\n<div style=\"padding: 26px 30px; background: linear-gradient(135deg,#f8fbff 0%,#ffffff 70%);\">\n<div style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(190px,1fr)); gap: 12px; margin-bottom: 22px;\">\n<div style=\"padding: 14px 16px; border: 1px solid #d8e2ee; border-radius: 12px; background: #ffffff;\">\n<div style=\"font-size: 12px; color: #6b7280; margin-bottom: 4px;\">Tell us<\/div>\n<div style=\"font-size: 15px; font-weight: bold; color: #163a63;\">Material &amp; Hardness<\/div>\n<\/div>\n<div style=\"padding: 14px 16px; border: 1px solid #d8e2ee; border-radius: 12px; background: #ffffff;\">\n<div style=\"font-size: 12px; color: #6b7280; margin-bottom: 4px;\">Confirm<\/div>\n<div style=\"font-size: 15px; font-weight: bold; color: #163a63;\">Tool Diameter<\/div>\n<\/div>\n<div style=\"padding: 14px 16px; border: 1px solid #d8e2ee; border-radius: 12px; background: #ffffff;\">\n<div style=\"font-size: 12px; color: #6b7280; margin-bottom: 4px;\">Check<\/div>\n<div style=\"font-size: 15px; font-weight: bold; color: #163a63;\">Corner Requirement<\/div>\n<\/div>\n<div style=\"padding: 14px 16px; border: 1px solid #d8e2ee; border-radius: 12px; background: #ffffff;\">\n<div style=\"font-size: 12px; color: #6b7280; margin-bottom: 4px;\">Describe<\/div>\n<div style=\"font-size: 15px; font-weight: bold; color: #163a63;\">Current Problem<\/div>\n<\/div>\n<\/div>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between;\">\n<div style=\"font-size: 14px; line-height: 1.7; color: #4b5563; flex: 1; min-width: 260px;\">Suitable for inquiries about steel milling, stainless steel milling, mold steel machining, edge chipping, tool wear, and surface finish.<\/div>\n<p><a style=\"display: inline-block; padding: 15px 26px; border-radius: 12px; background: #163a63; color: #ffffff; text-decoration: none; font-size: 15px; font-weight: bold; box-shadow: 0 8px 20px rgba(22,58,99,0.20);\" href=\"https:\/\/hycuttingtools.com\/vi\/contact\/\">Nh\u1eadn \u0111\u1ec1 xu\u1ea5t c\u00f4ng c\u1ee5<br \/>\n<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A corner radius end mill is often used when a square end mill chips too&#8230;<\/p>","protected":false},"author":1,"featured_media":7096,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowkrPfCw:productID":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[5003],"tags":[3551,3615,3552,3548,3550],"class_list":["post-3195","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tool-selection-guides","tag-carbide-end-mill","tag-cnc-milling","tag-cutting-tools","tag-end-mill","tag-milling-cutter"],"taxonomy_info":{"category":[{"value":5003,"label":"Tool Selection Guides"}],"post_tag":[{"value":3551,"label":"carbide end mill"},{"value":3615,"label":"CNC milling"},{"value":3552,"label":"cutting tools"},{"value":3548,"label":"end mill"},{"value":3550,"label":"milling cutter"}]},"featured_image_src_large":["https:\/\/hycuttingtools.com\/wp-content\/uploads\/2026\/08\/Corner-Radius-End-Mill-vs-Square-End-Mill-post-1024x576.png",1024,576,true],"author_info":{"display_name":"HY Cutting Tools","author_link":"https:\/\/hycuttingtools.com\/vi\/author\/1010616998qq-com\/"},"comment_info":0,"category_info":[{"term_id":5003,"name":"Tool Selection Guides","slug":"tool-selection-guides","term_group":0,"term_taxonomy_id":5003,"taxonomy":"category","description":"","parent":0,"count":16,"filter":"raw","cat_ID":5003,"category_count":16,"category_description":"","cat_name":"Tool Selection Guides","category_nicename":"tool-selection-guides","category_parent":0}],"tag_info":[{"term_id":3551,"name":"carbide end mill","slug":"carbide-end-mill","term_group":0,"term_taxonomy_id":3551,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":3615,"name":"CNC milling","slug":"cnc-milling","term_group":0,"term_taxonomy_id":3615,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":3552,"name":"cutting tools","slug":"cutting-tools","term_group":0,"term_taxonomy_id":3552,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"term_id":3548,"name":"end mill","slug":"end-mill","term_group":0,"term_taxonomy_id":3548,"taxonomy":"post_tag","description":"","parent":0,"count":6,"filter":"raw"},{"term_id":3550,"name":"milling cutter","slug":"milling-cutter","term_group":0,"term_taxonomy_id":3550,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/posts\/3195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/comments?post=3195"}],"version-history":[{"count":2,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/posts\/3195\/revisions"}],"predecessor-version":[{"id":3199,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/posts\/3195\/revisions\/3199"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/media\/7096"}],"wp:attachment":[{"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/media?parent=3195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/categories?post=3195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hycuttingtools.com\/vi\/wp-json\/wp\/v2\/tags?post=3195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}