{"product_id":"kennametal-5640973-cnmg431up-kcm15b-turning-insert","title":"Kennametal 5640973 CNMG431UP KCM15B Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 5640973 is a CNMG431UP turning insert in grade KCM15B, designed for high-productivity metal cutting on CNC lathes and turning centers. The insert features a multilayer MTCVD coating of TiCN and Al2O3, combining moderate-to-high wear resistance with sufficient toughness for demanding applications. The 80-degree diamond (rhombic) shape provides a strong cutting geometry, while the UP chip breaker geometry is optimized for roughing and medium machining operations. Negative rake and negative side clearance deliver stable, predictable cutting action in steel and stainless steel. Licensed machinists and CNC operators working in job shops or production environments install this insert type routinely.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning, facing, and boring operations on steel (ISO P), stainless steel (ISO M), and superalloys and titanium workpiece materials. The KCM15B grade targets applications requiring a balance of wear resistance and toughness — particularly useful on interrupted cuts or variable-condition workpieces. The KENLOC series clamp-and-pin holding method is standard for this insert style. The 4-cutting-edge configuration maximizes tool economy per insert.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMultilayer MTCVD coating: TiCN and Al2O3 for wear resistance on steel and stainless steel\u003c\/li\u003e\n\u003cli\u003e80-degree diamond (rhombic) insert shape with negative rake angle of 15 degrees for strong edge stability\u003c\/li\u003e\n\u003cli\u003eUP chip breaker geometry rated for roughing and medium machining\u003c\/li\u003e\n\u003cli\u003e4 usable cutting edges per insert for extended tool economy\u003c\/li\u003e\n\u003cli\u003eCompatible with clamp and pin insert holding methods (KENLOC series)\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI insert code CNMG431 and ISO insert code CNMG120404\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for KENLOC series toolholders accepting CNMG431 (ANSI) or CNMG120404 (ISO) negative-rake turning inserts with clamp and pin holding. Industry Standard Number CNMG431UP. ISO Code CNMG120404UP.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified CNC machinists or tool-room technicians. Before indexing or replacing inserts, the machine spindle must be fully stopped and all motion arrested per lockout\/tagout procedures. Seat the insert firmly against the toolholder pocket locating surfaces before tightening the clamp to prevent micro-movement during cuts. Inspect the insert pocket for chips, wear, or burrs prior to seating each new cutting edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNMG431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNMG120404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNMG431UP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCM15B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN and Al2O3 (Multilayer MTCVD CVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 12.90 mm (0.5077 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (1\/64 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1691 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 15 degrees (Negative)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: UP (Roughing and Medium Machining)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2 and C3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI and ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package (MOQ: 5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5640973\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51729085464882,"sku":"5640973","price":182.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2cb66ddbbe002b4f971ba33909815f18_73aa4818-505a-4bf2-a6db-e41813d68df5.jpg?v=1788699737","url":"https:\/\/voomisupply.com\/products\/kennametal-5640973-cnmg431up-kcm15b-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}