{"id":15483,"date":"2026-05-16T16:22:44","date_gmt":"2026-05-16T08:22:44","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15483"},"modified":"2026-10-23T14:07:33","modified_gmt":"2026-10-23T06:07:33","slug":"tool-steel-for-gages-precision-tools","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/tool-steel-for-gages-precision-tools\/","title":{"rendered":"\uac8c\uc774\uc9c0 \ubc0f \uc815\ubc00 \uacf5\uad6c\uc6a9 \uacf5\uad6c\uac15"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-text-align-center\">Tool Steel Selection for Gages &amp; Precision Tools<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Select tool steel by dimensional stability, abrasive wear resistance, polishing ability, galling risk, and long-term size control. For plug gages, ring gages, thread gages, snap gages, templates, measuring blocks, and micrometer anvils, the main choice is usually between stability, wear resistance, and precision surface finish.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quick Selection Guide by Tool Steel Grade<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choose the grade according to whether the tool is used for fixed gages, thread gages, templates, measuring tools, long-run plug or ring gages, or precision knife-edge parts.<\/p>\n\n\n\n<style id=\"gpc-cards\" data-noptimize=\"1\">\n\/* Gage \/ precision-tool cards. Card values follow the site card baseline:\n   white, square corners, hairline border, soft shadow, no card hover. *\/\n.entry-content[class] .gpc-row{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0 0 26px;padding:0}\n.entry-content[class] .gpc-row .wp-block-column{margin:0;padding:0;min-width:0}\n.entry-content[class] .gpc-row .gpc-card{background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:0;\n  box-shadow:0 12px 32px rgba(0,0,0,.04);padding:20px;display:flex;flex-direction:column;flex:1 1 auto}\n.entry-content[class] .gpc-card .gpc-label{margin:0 0 8px!important;font-size:11.5px!important;font-weight:600!important;\n  line-height:1.4!important;letter-spacing:.08em!important;text-transform:uppercase!important;color:#6b7280!important}\n.entry-content[class] .gpc-card h3{margin:0!important;color:#0b0b0b!important;font-size:23px!important;\n  line-height:1.25!important;font-weight:700!important;letter-spacing:-.01em!important;text-transform:none!important}\n.entry-content[class] .gpc-card .gpc-codes{margin:4px 0 0!important;font-size:13px!important;font-weight:600!important;\n  line-height:1.5!important;color:#6b7280!important;letter-spacing:.01em!important}\n.entry-content[class] .gpc-card p{font-size:17px!important;line-height:1.7!important;color:#0b0b0b!important;\n  margin:12px 0 14px!important}\n.entry-content[class] .gpc-card .gpc-reason{margin:0 0 18px!important;padding:10px 12px!important;font-size:14.5px!important;\n  line-height:1.6!important;color:#4b5563!important;background:#f8fafc;border-left:3px solid #dbe3ee;border-radius:4px}\n.entry-content[class] .gpc-card .wp-block-buttons{margin:auto 0 0!important;gap:12px;flex-wrap:nowrap;align-items:stretch}\n.entry-content[class] .gpc-card .wp-block-button{flex:1 1 0;margin:0;min-width:0}\n.entry-content[class] .gpc-card .wp-block-button__link{width:100%;border-radius:999px;padding:10px 12px;\n  font-size:14px;line-height:1.25;font-weight:700;text-align:center;text-decoration:none;\n  background:#074fd0;border:1px solid #074fd0;color:#fff}\n.entry-content[class] .gpc-card .wp-block-button__link:hover{background:#063c9e;border-color:#063c9e;color:#fff}\n.entry-content[class] .gpc-card .is-style-outline .wp-block-button__link{background:transparent;\n  border:1px solid #0b0b0b;color:#0b0b0b;font-weight:400}\n.entry-content[class] .gpc-card .is-style-outline .wp-block-button__link:hover{background:#f4f8ff;color:#0b0b0b}\n@media(max-width:1000px){.entry-content[class] .gpc-row{grid-template-columns:repeat(2,minmax(0,1fr))}}\n@media(max-width:640px){.entry-content[class] .gpc-row{grid-template-columns:1fr}\n  .entry-content[class] .gpc-card .wp-block-buttons{flex-wrap:wrap;gap:10px}}\n<\/style>\n\n\n\n<div class=\"wp-block-columns gpc-row is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column gpc-card is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"gpc-label wp-block-paragraph\">Precision Gages<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">O2 Tool Steel<\/h3>\n\n\n\n<p class=\"gpc-codes wp-block-paragraph\">1.2842<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended for gages, squares, straight edges, templates, and micrometer anvils.<\/p>\n\n\n\n<p class=\"gpc-reason wp-block-paragraph\">Reason: O2 can be hardened from relatively low temperatures, helping reduce thermal shock and improve dimensional stability.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/o2-tool-steel\/\">View Details<\/a><\/div>\n\n\n\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column gpc-card is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"gpc-label wp-block-paragraph\">Thread Gages<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">O1 Tool Steel<\/h3>\n\n\n\n<p class=\"gpc-codes wp-block-paragraph\">1.2510 \/ SKS3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended for thread gages, stamps, and general precision tools requiring good abrasion resistance.<\/p>\n\n\n\n<p class=\"gpc-reason wp-block-paragraph\">Reason: O1 is a general-purpose oil-hardening steel with good dimensional accuracy and useful wear resistance for precision tooling.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/o1-tool-steel\/\">View Details<\/a><\/div>\n\n\n\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column gpc-card is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"gpc-label wp-block-paragraph\">Long-Run Plug Gages<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D2 Tool Steel<\/h3>\n\n\n\n<p class=\"gpc-codes wp-block-paragraph\">1.2379 \/ SKD11 \/ Cr12Mo1V1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended for plug and ring gages used in high-volume or long-run production.<\/p>\n\n\n\n<p class=\"gpc-reason wp-block-paragraph\">Reason: D2 contains hard chromium carbides, giving strong wear resistance and good non-deforming characteristics during heat treatment.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--3\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/d2-tool-steel\/\">View Details<\/a><\/div>\n\n\n\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns gpc-row is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column gpc-card is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"gpc-label wp-block-paragraph\">High Wear Gages<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D3 Tool Steel<\/h3>\n\n\n\n<p class=\"gpc-codes wp-block-paragraph\">1.2080 \/ SKD1 \/ Cr12<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended for plug and ring gages where high abrasive wear resistance is required.<\/p>\n\n\n\n<p class=\"gpc-reason wp-block-paragraph\">Reason: D3 provides high carbide volume and strong resistance to abrasive wear for gaging surfaces exposed to repeated sliding contact.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--4\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/d3-tool-steel\/\">View Details<\/a><\/div>\n\n\n\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column gpc-card is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"gpc-label wp-block-paragraph\">Knife Edges &amp; Arbors<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L6 Tool Steel<\/h3>\n\n\n\n<p class=\"gpc-codes wp-block-paragraph\">1.2714 \/ SKT4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended for precision gages, knife edges, arbors, and tools requiring a balance of toughness and wear resistance.<\/p>\n\n\n\n<p class=\"gpc-reason wp-block-paragraph\">Reason: L6 is selected where moderate hardenability, toughness, and wear resistance are needed in precision tool components.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--5\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/l6-tool-steel\/\">View Details<\/a><\/div>\n\n\n\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">Send Inquiry<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Selection Summary<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This table gives a faster comparison when the buyer already knows the precision tool type and main performance requirement. The reasoning behind each grade choice is walked through in the <a href=\"https:\/\/aobosteel.com\/tool-steel-selection-for-gages-precision-tools\/\">tool steel selection guide for gages and precision tools<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Precision Tool Application<\/th><th class=\"has-text-align-left\" data-align=\"left\">Main Requirement<\/th><th class=\"has-text-align-left\" data-align=\"left\">Aobo Steel Grades<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Gages, squares, straight edges, templates, and micrometer anvils<\/td><td class=\"has-text-align-left\" data-align=\"left\">Extreme dimensional stability and low heat-treatment movement<\/td><td class=\"has-text-align-left\" data-align=\"left\">O2<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Thread gages, stamps, and general precision tools<\/td><td class=\"has-text-align-left\" data-align=\"left\">Good dimensional accuracy and abrasion resistance<\/td><td class=\"has-text-align-left\" data-align=\"left\">O1<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">High-volume plug and ring gages<\/td><td class=\"has-text-align-left\" data-align=\"left\">High wear resistance and non-deforming heat-treatment behavior<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2, D3<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Precision gages, knife edges, and arbors<\/td><td class=\"has-text-align-left\" data-align=\"left\">Balance of toughness and wear resistance<\/td><td class=\"has-text-align-left\" data-align=\"left\">L6<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Sliding gaging surfaces<\/td><td class=\"has-text-align-left\" data-align=\"left\">Wear resistance, polished finish, and galling control<\/td><td class=\"has-text-align-left\" data-align=\"left\">O1, O2, D2, D3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n","protected":false},"excerpt":{"rendered":"<p>Tool Steel Selection for Gages &amp; Precision Tools Select tool steel by dimensional stability, abrasive wear resistance, polishing ability, galling risk, and long-term size control. For plug gages, ring gages, thread gages, snap gages, templates, measuring blocks, and micrometer anvils, the main choice is usually between stability, wear resistance, and precision surface finish. Quick Selection [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-15483","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Tool Steel for Gages &amp; Precision Tools - AoboSteel<\/title>\n<meta name=\"description\" content=\"Select O2, O1, D2, D3, or L6 tool steel for gages and precision tools by dimensional stability, wear resistance, polishability, and galling risk.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/ko\/tool-steel-for-gages-precision-tools\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tool Steel for Gages &amp; Precision Tools\" \/>\n<meta property=\"og:description\" content=\"Select O2, O1, D2, D3, or L6 tool steel for gages and precision tools by dimensional stability, wear resistance, polishability, and galling risk.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/tool-steel-for-gages-precision-tools\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-23T06:07:33+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"2\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-for-gages-precision-tools\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-for-gages-precision-tools\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"Tool Steel for Gages &amp; 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Precision Tools Select tool steel by dimensional stability, abrasive wear resistance, polishing ability, galling risk, and long-term size control. 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