{"product_id":"zcc-ct-cnmg120404-dm-ybm251-turning-insert-stainless-steel","title":"ZCC.CT CNMG120404-DM YBM251 Carbide Turning Inserts for Stainless Steel","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 10px;\"\u003e\n\u003cheader style=\"background-color: #47479f; padding: 30px 15px; text-align: center; border-radius: 4px; margin-bottom: 20px;\"\u003e\n\u003ch1 style=\"color: #ffffff; margin: 0; font-size: 26px; font-weight: bold;\"\u003eZCC.CT CNMG120404-DM YBM251: Precision Turning for Stainless Steel\u003c\/h1\u003e\n\u003c\/header\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 22px; border-left: 6px solid #47479F; padding-left: 15px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"font-style: italic; color: #555; background: #f4f4f9; padding: 20px; border-radius: 8px; margin-top: 15px;\"\u003e\"Which insert grade is the best all-rounder for stable and semi-stable turning of austenitic and duplex stainless steels?\"\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eZCC.CT CNMG120404-DM YBM251\u003c\/strong\u003e is a high-performance turning insert engineered for versatility. The \u003cstrong\u003eYBM251 grade\u003c\/strong\u003e combines a tough carbide substrate with an advanced multi-layer PVD coating, offering exceptional resistance to thermal shock and notch wear. Featuring the \u003cstrong\u003eDM chipbreaker\u003c\/strong\u003e, it is specifically designed for medium-duty machining (Medium-Cut), providing excellent chip breaking even in \"stringy\" materials like 304 or 316 stainless steel, ensuring high process reliability and superior surface finishes.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 5px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; list-style-type: disc;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized YBM251 PVD Grade:\u003c\/strong\u003e Superior coating adhesion reduces built-up edge (BUE) and extends tool life in difficult-to-machine materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDM Chipbreaker Geometry:\u003c\/strong\u003e The \"Medium\" range geometry provides a perfect balance between edge strength and sharpness for versatile applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Thermal Resistance:\u003c\/strong\u003e Engineered to handle the high heat generated during stainless steel machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-Sided Design:\u003c\/strong\u003e 80° Diamond shape with 4 usable cutting edges for maximum cost-efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 20px; margin-bottom: 20px; border-radius: 8px; background-color: #fff;\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin-top: 0; text-align: center;\"\u003eISO Model Breakdown (CNMG 120404-DM)\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; font-family: monospace;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e80° Diamond\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e0° Clearance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003eG\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eHole\/Chipbreak\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e12.9mm Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003e04\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e4.76mm Thick\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 8px; min-width: 70px; text-align: center;\"\u003e\n\u003cstrong\u003e04\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e0.4mm Radius\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 8px; min-width: 70px; text-align: center; background: #47479F; color: #fff;\"\u003e\n\u003cstrong\u003eDM\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eMedium Cut\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMetric Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eANSI\/Imperial Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCNMG120404-DM\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCNMG 431-DM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 18px; color: #333;\"\u003eRecommended Cutting Data\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: center;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f4f4f4;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eWorkpiece Material\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFeed Rate (fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless Steel (M)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e150 - 260 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.15 - 0.50 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSuperalloys (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e30 - 80 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.12 - 0.40 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eTool Compatibility\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 20px; text-align: center; border-radius: 8px; background-color: #f9f9ff;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cstrong\u003eMatching External\/Internal Turning Tool Holders:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits all standard \u003cstrong\u003eD-clamping\u003c\/strong\u003e and \u003cstrong\u003eP-clamping\u003c\/strong\u003e systems using CNMG 1204 series.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 10px;\"\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/cn-insert-multi-lock-system\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"background: #47479F; color: #fff; padding: 5px 12px; border-radius: 4px;\"\u003eDCLNR\/L 2525M12\u003c\/span\u003e \u003cspan style=\"background: #47479F; color: #fff; padding: 5px 12px; border-radius: 4px;\"\u003ePCLNR\/L 2020K12\u003c\/span\u003e \u003cspan style=\"background: #47479F; color: #fff; padding: 5px 12px; border-radius: 4px;\"\u003eA32S-PCLNR12\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eThe first choice for \u003cstrong\u003eMedium-Roughing to Semi-Finishing\u003c\/strong\u003e operations in:\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px;\"\u003e\n\u003cspan style=\"background: #eef; border: 1px solid #47479F; color: #47479f; padding: 5px 15px; border-radius: 20px; font-size: 14px;\"\u003eAutomotive Components\u003c\/span\u003e \u003cspan style=\"background: #eef; border: 1px solid #47479F; color: #47479f; padding: 5px 15px; border-radius: 20px; font-size: 14px;\"\u003eHydraulic Fittings\u003c\/span\u003e \u003cspan style=\"background: #eef; border: 1px solid #47479F; color: #47479f; padding: 5px 15px; border-radius: 20px; font-size: 14px;\"\u003eFood Processing Machinery\u003c\/span\u003e \u003cspan style=\"background: #eef; border: 1px solid #47479F; color: #47479f; padding: 5px 15px; border-radius: 20px; font-size: 14px;\"\u003eAerospace Structural Parts\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eZCC.CT Grade Quick Guide (Stainless)\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f4f4f4;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBest Use Case\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHardness\/Toughness\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eYBM151\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh Speed \/ Continuous Finishing\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHighest Hardness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eYBM251\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGeneral Purpose \/ Medium Machining\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eWhat Our Customers Say\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Reliable Chip Control\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px;\"\u003e\"We mill a lot of 316 stainless. The DM chipbreaker is a lifesaver. No more long stringy chips tangling the spindle.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 11px; color: #888;\"\u003e— \u003cem\u003eMarkus B., Germany\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Better than Major Brands\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px;\"\u003e\"Honestly, YBM251 performs just as well as the more expensive Swedish brands on our lathe. Tool life is very predictable.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 11px; color: #888;\"\u003e— \u003cem\u003eJohn D., USA\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 5px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Versatile Performance\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px;\"\u003e\"Great for batch production. Consistent finish across 200 parts. Delivery to Italy was fast.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 11px; color: #888;\"\u003e— \u003cem\u003eMatteo V., Italy\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Tough Insert\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px;\"\u003e\"Handles interrupted cuts on stainless casting surprisingly well for a PVD grade. No chipping found.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 11px; color: #888;\"\u003e— \u003cem\u003eKenji T., Japan\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 30px; background-color: #47479f; padding: 25px; border-radius: 8px; color: #ffffff;\"\u003e\n\u003ch2 style=\"color: #ffffff; margin-top: 0;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Is YBM251 suitable for dry machining stainless steel?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #eee;\"\u003eA: While the PVD coating can handle heat, we strongly recommend using flood coolant to prevent chip adhesion and to maximize tool life in stainless steel turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: What is the difference between DM and DF chipbreakers?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #eee;\"\u003eA: DM is for Medium cutting (balanced), while DF is optimized for Finishing with lower cutting depths and higher precision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Can I use this insert on alloy steel?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #eee;\"\u003eA: Yes, YBM251 performs exceptionally well on various alloy steels, but it is primarily optimized for the specific challenges of the Stainless (M) material group.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cfooter style=\"text-align: center; border-top: 1px solid #ddd; padding-top: 20px;\"\u003e\n\u003cp style=\"font-size: 13px; color: #777;\"\u003e\u003cstrong\u003eTurning Pro-Tip:\u003c\/strong\u003e To achieve a superior surface finish with \u003cstrong\u003eCNMG120404\u003c\/strong\u003e, ensure your feed rate is at least 0.15mm\/rev to activate the DM chipbreaker geometry effectively.\u003c\/p\u003e\n\u003c\/footer\u003e\n\u003c\/div\u003e","brand":"ZCC.CT","offers":[{"title":"Default Title","offer_id":43492046799020,"sku":"CNMG120404-DM YBM251","price":75.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/ZCC.CT_CNMG120404-DM_YBM251_PVD_Coated_Carbide_Insert_for_Stainless_Steel.jpg?v=1777277330","url":"https:\/\/cnchome-beyond.com\/products\/zcc-ct-cnmg120404-dm-ybm251-turning-insert-stainless-steel","provider":"CNCHome-Beyond","version":"1.0","type":"link"}