{"id":8347,"date":"2026-09-28T17:40:55","date_gmt":"2026-09-28T17:40:55","guid":{"rendered":"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-12t308\/"},"modified":"2026-10-14T07:57:49","modified_gmt":"2026-10-14T07:57:49","slug":"vnmg-12t308","status":"publish","type":"page","link":"https:\/\/ychltools.com\/zh\/turning-inserts\/vnmg\/vnmg-12t308\/","title":{"rendered":"VNMG 12T308 \u8f66\u524a\u5200\u7247"},"content":{"rendered":"\n<main class=\"ychl-catalog-v4 ychl-parent-page\" data-kind=\"turning\"><nav class=\"ychl-type-tabs\" aria-label=\"Product type\"><a class=\"\" href=\"\/products\/\">All Inserts<\/a><a class=\"is-active\" href=\"\/turning-inserts\/\">Turning Inserts<\/a><a class=\"\" href=\"\/milling-inserts\/\">Milling Inserts<\/a><\/nav><div class=\"ychl-catalog-shell\"><nav class=\"ychl-crumbs\" aria-label=\"Breadcrumb\"><a href=\"\/products\/\">Products<\/a><span>\/<\/span><a href=\"\/turning-inserts\/\">Turning Inserts<\/a><span>\/<\/span><a href=\"\/turning-inserts\/vnmg\/\">VNMG<\/a><span>\/<\/span><span aria-current=\"page\">VNMG 12T308<\/span><\/nav><section class=\"ychl-parent-hero\"><div class=\"ychl-parent-image\"><img decoding=\"async\" src=\"https:\/\/ychltools.com\/wp-content\/uploads\/2026\/09\/ychl-product-std-2cf67d06e41ca6d5.png\" alt=\"VNMG 12T308 turning insert\"><\/div><div class=\"ychl-parent-intro\"><h1>VNMG 12T308 Turning Inserts<\/h1><p>Compare suitable materials and applications, then choose a brand to view the exact SKUs.<\/p><dl class=\"ychl-shared-specs\"><div><dt>ISO Code<\/dt><dd>VNMG12T308<\/dd><\/div><div><dt>Insert Size<\/dt><dd>12T308<\/dd><\/div><div><dt>Shape<\/dt><dd>V<\/dd><\/div><\/dl><\/div><\/section><section class=\"ychl-option-finder\"><div class=\"ychl-section-heading\"><h2>Find the Right Option<\/h2><p>Select the workpiece material and application. Brand remains optional.<\/p><\/div><div class=\"ychl-option-grid\"><fieldset><legend>1. Workpiece Material<\/legend><div class=\"ychl-material-choices\"><button type=\"button\" class=\"ychl-mat-choice ychl-mat-m\" data-parent-material=\"M\"><b>M<\/b><span>Stainless Steel<\/span><\/button><button type=\"button\" class=\"ychl-mat-choice ychl-mat-s\" data-parent-material=\"S\"><b>S<\/b><span>Heat-resistant Alloys<\/span><\/button><button type=\"button\" class=\"ychl-mat-choice ychl-mat-p\" data-parent-material=\"P\"><b>P<\/b><span>Steel<\/span><\/button><\/div><\/fieldset><fieldset><legend>2. Application<\/legend><div class=\"ychl-stage-choices\"><button type=\"button\" data-parent-application=\"Medium\">Medium<\/button><\/div><\/fieldset><label>3. Brand<select data-parent-brand><option value=\"\">All Brands<\/option><option>Achteck<\/option><\/select><\/label><\/div><\/section><section class=\"ychl-matching-brands\"><div class=\"ychl-section-heading\"><h2>Brands<\/h2><p data-match-summary>All available options for this parent model.<\/p><\/div><div class=\"ychl-brand-match-list\"><article class=\"ychl-brand-match\" data-brand=\"Achteck\" data-material=\"M,S,P\" data-application=\"Medium\"><div class=\"ychl-brand-match-image\"><img decoding=\"async\" src=\"https:\/\/ychltools.com\/wp-content\/uploads\/2026\/09\/ychl-product-std-2cf67d06e41ca6d5.png\" alt=\"Achteck VNMG12T308 insert\" loading=\"lazy\"><\/div><div class=\"ychl-brand-match-copy\"><div class=\"ychl-brand-card-heading\"><strong>Achteck<\/strong><span class=\"ychl-brand-option-count\" data-match-count>3 Options<\/span><\/div><div class=\"ychl-brand-card-fact\"><b>Workpiece Material<\/b><span class=\"ychl-materials\"><span class=\"ychl-mat ychl-mat-m\" title=\"Stainless Steel\">M<\/span><span class=\"ychl-mat ychl-mat-s\" title=\"Heat-resistant Alloys\">S<\/span><span class=\"ychl-mat ychl-mat-p\" title=\"Steel\">P<\/span><\/span><\/div><div class=\"ychl-brand-card-fact\"><b>Application<\/b><span>Medium<\/span><\/div><\/div><div class=\"ychl-brand-match-action\"><a href=\"\/turning-inserts\/vnmg\/vnmg-12t308\/achteck\/\">View Options <span aria-hidden=\"true\">\u2192<\/span><\/a><\/div><\/article><\/div><\/section><\/div><script type=\"application\/json\" class=\"ychl-parent-option-data\">[{\"brand\":\"Achteck\",\"material\":[\"M\",\"S\"],\"application\":[\"Medium\"]},{\"brand\":\"Achteck\",\"material\":[\"P\"],\"application\":[\"Medium\"]},{\"brand\":\"Achteck\",\"material\":[\"P\"],\"application\":[\"Medium\"]}]<\/script><\/main>\n","protected":false},"excerpt":{"rendered":"<p>All InsertsTurning InsertsMilling Inserts Products\/Turning Inserts\/VNMG\/VNMG 12T308 VNMG 12T308 Turning Inserts Compare suitable materials and applications, then choose a brand to view the exact SKUs. ISO Code VNMG12T308 Insert Size 12T308 Shape V Find the Right Option Select the workpiece material and application. Brand remains optional. 1. Workpiece Material MStainless SteelSHeat-resistant AlloysPSteel 2. Application Medium [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1724,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_ychl_meta_desc":"VNMG 12T308 carbide turning inserts \u2014 3 options, for M\/P\/S (stainless, steel, heat-resistant alloys), medium cuts. Full cutting data, MOQ 10 pcs.","_ychl_model_html":"<p>A 35\u00b0 rhombic turning insert with 4 cutting edges, VNMG 12T308 is stocked here in <strong>3<\/strong> variants from Achteck. Published applications cover Steel, Stainless steel, Heat-resistant alloys. Key dimensions: 7.15 mm inscribed circle, 3.97 mm thickness, 0.8 mm nose radius.<\/p>\n<p>The designation encodes the geometry: the first letter is the shape (V), the following letter the clearance angle, then the tolerance class, then size, thickness and nose radius. If you want to check any of it, our <a href=\"\/resources\/iso-insert-code-decoder\/\">ISO insert code decoder<\/a> breaks the full string down character by character.<\/p>\n<h2>Geometry and dimensions<\/h2>\n<div class=\"ychl-art-table\"><table><tbody>\n<tr><th>Insert family<\/th><td><a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/\">VNMG<\/a><\/td><\/tr>\n<tr><th>Category<\/th><td><a href=\"https:\/\/ychltools.com\/turning-inserts\/\">Turning Inserts<\/a><\/td><\/tr>\n<tr><th>Shape<\/th><td>35\u00b0 rhombic (V)<\/td><\/tr>\n<tr><th>Usable cutting edges<\/th><td>4<\/td><\/tr>\n<tr><th>Inscribed circle (IC)<\/th><td>7.15 mm<\/td><\/tr>\n<tr><th>Thickness (S)<\/th><td>3.97 mm<\/td><\/tr>\n<tr><th>Nose radius (RE)<\/th><td>0.8 mm<\/td><\/tr>\n<tr><th>Fixing hole diameter (D1)<\/th><td>3.81 mm<\/td><\/tr>\n<tr><th>Hand<\/th><td>Neutral<\/td><\/tr>\n<tr><th>Variants in stock<\/th><td>3<\/td><\/tr>\n<tr><th>Brands<\/th><td>Achteck<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<h2>Recommended cutting data<\/h2>\n<p>The figures below are the manufacturers' published ranges, aggregated across the 3 variants listed on this page. The <em>typical<\/em> column is the median, which is where most shops end up running. Treat the full range as the envelope, not a target \u2014 start around 60\u201370% of it and work up.<\/p>\n<div class=\"ychl-art-table\"><table>\n<thead><tr><th>Workpiece material<\/th><th>Cutting speed vc (m\/min)<\/th><th>Typical vc<\/th><th>Feed fn (mm\/rev)<\/th><th>Depth of cut ap (mm)<\/th><th>Variants with data<\/th><\/tr><\/thead><tbody>\n<tr><td><strong>Steel (P)<\/strong><\/td><td>75 \u2013 570<\/td><td><strong>85 \u2013 540<\/strong><\/td><td>0.15\u20130.44<\/td><td>0.8\u20132.5<\/td><td>2 of 3<\/td><\/tr>\n<tr><td><strong>Stainless steel (M)<\/strong><\/td><td>70 \u2013 200<\/td><td><strong>70 \u2013 200<\/strong><\/td><td>0.15\u20130.44<\/td><td>0.64\u20132.5<\/td><td>1 of 3<\/td><\/tr>\n<tr><td><strong>Heat-resistant alloys (S)<\/strong><\/td><td>30 \u2013 160<\/td><td><strong>30 \u2013 160<\/strong><\/td><td>0.15\u20130.44<\/td><td>0.64\u20132.5<\/td><td>1 of 3<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p>To turn a cutting speed into a spindle speed for your actual diameter, use the <a href=\"\/resources\/cutting-parameters-calculator\/\">cutting parameters calculator<\/a>: n = vc \u00d7 1000 \/ (\u03c0 \u00d7 D).<\/p>\n<h2>Carbide grades available<\/h2>\n<p>3 variants of VNMG 12T308 are stocked in these grades: <strong>AP301M<\/strong>, <strong>AC152P<\/strong>, <strong>AC252P<\/strong>.<\/p>\n<p>Across this range the grades specified most often are AP301M, AC152P, AC252P. Within one brand's range, a higher middle digit usually means a tougher grade \u2014 better on interrupted cuts, slightly less wear resistant. See <a href=\"\/resources\/carbide-grades-explained\/\">carbide grades explained<\/a> for how to read the names.<\/p>\n<h2>Chipbreaker geometries<\/h2>\n<p>Chipbreakers stocked for VNMG 12T308: PD3, MC3.<\/p>\n<p>The chipbreaker sets the usable feed window far more than the depth of cut does. A roughing geometry run at finishing feed will not break the chip; a finishing geometry pushed into a roughing cut will chip. Match it to the feed you will actually run \u2014 <a href=\"\/resources\/chipbreaker-selection-guide\/\">chipbreaker selection guide<\/a>.<\/p>\n<h2>Typical applications<\/h2>\n<ul>\n<li>Medium<\/li>\n<\/ul>\n<p>For more on cutting steel, see our <a href=\"\/resources\/iso-513-material-groups\/\">material-specific guide<\/a>.<\/p>\n<h2>Related<\/h2><ul>\n<li>Same family: <a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-160408\/\">VNMG 160408<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-160404\/\">VNMG 160404<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-160412\/\">VNMG 160412<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-160402\/\">VNMG 160402<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-12t304\/\">VNMG 12T304<\/a><\/li>\n<li><a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/\">All VNMG<\/a><\/li>\n<li><a href=\"https:\/\/ychltools.com\/turning-inserts\/vnmg\/vnmg-12t308\/achteck\/\">Achteck VNMG 12T308<\/a> (3 variants)<\/li>\n<li><a href=\"\/resources\/iso-insert-code-decoder\/\">Decode the VNMG 12T308 designation<\/a><\/li>\n<li><a href=\"\/resources\/cutting-parameters-calculator\/\">Cutting speed to rpm calculator<\/a><\/li>\n<li><a href=\"\/resources\/turning-insert-selection-guide\/\">Turning insert selection guide<\/a><\/li>\n<\/ul>"},"class_list":["post-8347","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8347","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/comments?post=8347"}],"version-history":[{"count":1,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8347\/revisions"}],"predecessor-version":[{"id":10163,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8347\/revisions\/10163"}],"up":[{"embeddable":true,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/1724"}],"wp:attachment":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/media?parent=8347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}