{"id":8112,"date":"2026-09-28T17:39:40","date_gmt":"2026-09-28T17:39:40","guid":{"rendered":"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-090308\/"},"modified":"2026-10-14T07:49:15","modified_gmt":"2026-10-14T07:49:15","slug":"cnmg-090308","status":"publish","type":"page","link":"https:\/\/ychltools.com\/zh\/turning-inserts\/cnmg\/cnmg-090308\/","title":{"rendered":"CNMG 090308 \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\/cnmg\/\">CNMG<\/a><span>\/<\/span><span aria-current=\"page\">CNMG 090308<\/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-68044d9f6748093a.png\" alt=\"CNMG 090308 turning insert\"><\/div><div class=\"ychl-parent-intro\"><h1>CNMG 090308 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>CNMG090308<\/dd><\/div><div><dt>Insert Size<\/dt><dd>090308<\/dd><\/div><div><dt>Shape<\/dt><dd>C<\/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-k\" data-parent-material=\"K\"><b>K<\/b><span>Cast Iron<\/span><\/button><\/div><\/fieldset><fieldset><legend>2. Application<\/legend><div class=\"ychl-stage-choices\"><button type=\"button\" data-parent-application=\"Roughing\">Roughing<\/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=\"K\" data-application=\"Roughing\"><div class=\"ychl-brand-match-image\"><img decoding=\"async\" src=\"https:\/\/ychltools.com\/wp-content\/uploads\/2026\/09\/ychl-product-std-68044d9f6748093a.png\" alt=\"Achteck CNMG090308 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>2 Options<\/span><\/div><div class=\"ychl-brand-card-fact\"><b>Workpiece Material<\/b><span class=\"ychl-materials\"><span class=\"ychl-mat ychl-mat-k\" title=\"Cast Iron\">K<\/span><\/span><\/div><div class=\"ychl-brand-card-fact\"><b>Application<\/b><span>Roughing<\/span><\/div><\/div><div class=\"ychl-brand-match-action\"><a href=\"\/turning-inserts\/cnmg\/cnmg-090308\/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\":[\"K\"],\"application\":[\"Roughing\"]},{\"brand\":\"Achteck\",\"material\":[\"K\"],\"application\":[\"Roughing\"]}]<\/script><\/main>\n","protected":false},"excerpt":{"rendered":"<p>All InsertsTurning InsertsMilling Inserts Products\/Turning Inserts\/CNMG\/CNMG 090308 CNMG 090308 Turning Inserts Compare suitable materials and applications, then choose a brand to view the exact SKUs. ISO Code CNMG090308 Insert Size 090308 Shape C Find the Right Option Select the workpiece material and application. Brand remains optional. 1. Workpiece Material KCast Iron 2. Application Roughing 3. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1720,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_ychl_meta_desc":"CNMG 090308 indexable turning inserts \u2014 2 options, for cast iron, roughing cuts, from Achteck, 80\u00b0 rhombic geometry. Cutting data + RFQ.","_ychl_model_html":"<p>This page covers every <strong>CNMG 090308<\/strong> insert we can supply \u2014 <strong>2<\/strong> variants across Achteck, published for Cast iron. The 80\u00b0 rhombic geometry gives it 4 cutting edges and makes it suitable for general turning and profiling.<\/p>\n<p>The designation encodes the geometry: the first letter is the shape (C), 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\/cnmg\/\">CNMG<\/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>80\u00b0 rhombic (C)<\/td><\/tr>\n<tr><th>Usable cutting edges<\/th><td>4<\/td><\/tr>\n<tr><th>Inscribed circle (IC)<\/th><td>9.53 mm<\/td><\/tr>\n<tr><th>Thickness (S)<\/th><td>3.18 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>2<\/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 2 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>Cast iron (K)<\/strong><\/td><td>95 \u2013 490<\/td><td><strong>110 \u2013 445<\/strong><\/td><td>0.18\u20130.48<\/td><td>0.96\u20133.9<\/td><td>2 of 2<\/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>2 variants of CNMG 090308 are stocked in these grades: <strong>AC102K<\/strong>, <strong>AC202K<\/strong>.<\/p>\n<p>Across this range the grades specified most often are AC102K, AC202K. 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 CNMG 090308: KC4.<\/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>Roughing<\/li>\n<\/ul>\n<p>For more on cutting cast iron, see our <a href=\"\/resources\/cast-iron-turning-inserts\/\">material-specific guide<\/a>.<\/p>\n<h2>Related<\/h2><ul>\n<li>Same family: <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-120408\/\">CNMG 120408<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-120404\/\">CNMG 120404<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-120412\/\">CNMG 120412<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-160612\/\">CNMG 160612<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-190612\/\">CNMG 190612<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-160616\/\">CNMG 160616<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-190616\/\">CNMG 190616<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-160608\/\">CNMG 160608<\/a><\/li>\n<li><a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/\">All CNMG<\/a><\/li>\n<li><a href=\"https:\/\/ychltools.com\/turning-inserts\/cnmg\/cnmg-090308\/achteck\/\">Achteck CNMG 090308<\/a> (2 variants)<\/li>\n<li><a href=\"\/resources\/iso-insert-code-decoder\/\">Decode the CNMG 090308 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-8112","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8112","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=8112"}],"version-history":[{"count":1,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8112\/revisions"}],"predecessor-version":[{"id":9928,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8112\/revisions\/9928"}],"up":[{"embeddable":true,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/1720"}],"wp:attachment":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/media?parent=8112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}