{"id":8106,"date":"2026-09-28T17:39:39","date_gmt":"2026-09-28T17:39:39","guid":{"rendered":"https:\/\/ychltools.com\/turning-inserts\/cnga\/cnga-120408\/"},"modified":"2026-10-14T07:49:03","modified_gmt":"2026-10-14T07:49:03","slug":"cnga-120408","status":"publish","type":"page","link":"https:\/\/ychltools.com\/zh\/turning-inserts\/cnga\/cnga-120408\/","title":{"rendered":"CNGA 120408 \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\/cnga\/\">CNGA<\/a><span>\/<\/span><span aria-current=\"page\">CNGA 120408<\/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-8846d9cac9d0cbb0.png\" alt=\"CNGA 120408 turning insert\"><\/div><div class=\"ychl-parent-intro\"><h1>CNGA 120408 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>CNGA120408<\/dd><\/div><div><dt>Insert Size<\/dt><dd>120408<\/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-n\" data-parent-material=\"N\"><b>N<\/b><span>Non-ferrous<\/span><\/button><button type=\"button\" class=\"ychl-mat-choice ychl-mat-h\" data-parent-material=\"H\"><b>H<\/b><span>Hardened Steel<\/span><\/button><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\"><\/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=\"N,H,K\" data-application=\"\"><div class=\"ychl-brand-match-image\"><img decoding=\"async\" src=\"https:\/\/ychltools.com\/wp-content\/uploads\/2026\/09\/ychl-product-std-8846d9cac9d0cbb0.png\" alt=\"Achteck CNGA120408 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>8 Options<\/span><\/div><div class=\"ychl-brand-card-fact\"><b>Workpiece Material<\/b><span class=\"ychl-materials\"><span class=\"ychl-mat ychl-mat-n\" title=\"Non-ferrous\">N<\/span><span class=\"ychl-mat ychl-mat-h\" title=\"Hardened Steel\">H<\/span><span class=\"ychl-mat ychl-mat-k\" title=\"Cast Iron\">K<\/span><\/span><\/div><div class=\"ychl-brand-card-fact\"><b>Application<\/b><span><\/span><\/div><\/div><div class=\"ychl-brand-match-action\"><a href=\"\/turning-inserts\/cnga\/cnga-120408\/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\":[\"N\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"H\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"H\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"K\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"H\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"H\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"K\"],\"application\":[]},{\"brand\":\"Achteck\",\"material\":[\"H\"],\"application\":[]}]<\/script><\/main>\n","protected":false},"excerpt":{"rendered":"<p>All InsertsTurning InsertsMilling Inserts Products\/Turning Inserts\/CNGA\/CNGA 120408 CNGA 120408 Turning Inserts Compare suitable materials and applications, then choose a brand to view the exact SKUs. ISO Code CNGA120408 Insert Size 120408 Shape C Find the Right Option Select the workpiece material and application. Brand remains optional. 1. Workpiece Material NNon-ferrousHHardened SteelKCast Iron 2. Application 3. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":7882,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_ychl_meta_desc":"CNGA 120408 carbide turning inserts \u2014 8 options, for H\/K\/N (hardened steel, cast iron, non-ferrous), from Achteck. Cutting data + RFQ.","_ychl_model_html":"<p><strong>CNGA 120408<\/strong> is an 80\u00b0 rhombic turning insert with 4 usable cutting edges, used mainly for general turning and profiling. We list <strong>8<\/strong> stock-keeping variants of it from Achteck, covering Cast iron, Non-ferrous, Hardened steel.<\/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\/cnga\/\">CNGA<\/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>12.7 mm<\/td><\/tr>\n<tr><th>Thickness (S)<\/th><td>4.76 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>5.16 mm<\/td><\/tr>\n<tr><th>Hand<\/th><td>Neutral<\/td><\/tr>\n<tr><th>Variants in stock<\/th><td>8<\/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 8 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>150 \u2013 450<\/td><td><strong>150 \u2013 450<\/strong><\/td><td>0.03\u20130.3<\/td><td>\u2014<\/td><td>2 of 8<\/td><\/tr>\n<tr><td><strong>Non-ferrous (N)<\/strong><\/td><td>300 \u2013 600<\/td><td><strong>300 \u2013 600<\/strong><\/td><td>0.03\u20130.2<\/td><td>\u2014<\/td><td>1 of 8<\/td><\/tr>\n<tr><td><strong>Hardened steel (H)<\/strong><\/td><td>90 \u2013 180<\/td><td><strong>120 \u2013 180<\/strong><\/td><td>0.03\u20130.3<\/td><td>\u2014<\/td><td>5 of 8<\/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>8 variants of CNGA 120408 are stocked in these grades: <strong>PB30<\/strong>, <strong>PB60<\/strong>, <strong>PB90<\/strong>, <strong>PD20<\/strong>.<\/p>\n<p>Across this range the grades specified most often are PB30, PB60, PB90, PD20. 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>Related<\/h2><ul>\n<li>Same family: <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnga\/cnga-120412\/\">CNGA 120412<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnga\/cnga-120404\/\">CNGA 120404<\/a>, <a href=\"https:\/\/ychltools.com\/turning-inserts\/cnga\/cnga-120402\/\">CNGA 120402<\/a><\/li>\n<li><a href=\"https:\/\/ychltools.com\/turning-inserts\/cnga\/\">All CNGA<\/a><\/li>\n<li><a href=\"https:\/\/ychltools.com\/turning-inserts\/cnga\/cnga-120408\/achteck\/\">Achteck CNGA 120408<\/a> (8 variants)<\/li>\n<li><a href=\"\/resources\/iso-insert-code-decoder\/\">Decode the CNGA 120408 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-8106","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8106","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=8106"}],"version-history":[{"count":1,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8106\/revisions"}],"predecessor-version":[{"id":9922,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/8106\/revisions\/9922"}],"up":[{"embeddable":true,"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/pages\/7882"}],"wp:attachment":[{"href":"https:\/\/ychltools.com\/zh\/wp-json\/wp\/v2\/media?parent=8106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}