{"product_id":"kennametal-6686921-cpmt2151mp-kcs10b-turning-insert","title":"Kennametal 6686921 CPMT2151MP KCS10B Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 6686921 is a solid carbide turning insert in the CPMT series, designed for screw-on toolholders in CNC and manual turning applications. Manufactured to ANSI code CPMT2151 and ISO code CPMT060204, this insert features an 80-degree diamond (rhombic) shape with an 11-degree relief angle and a positive rake geometry. The KCS10B grade is applied with an AlTiN coating via PVD process, delivering high wear resistance across a range of workpiece materials. The MP chip breaker geometry supports both roughing and medium machining operations. The insert measures 0.254 inches in length with a 0.25 inch inscribed circle and a 1\/64 inch corner radius. Installation is performed by qualified machinists and CNC operators.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning, facing, and boring operations on steel, stainless steel, cast iron, aluminum, superalloys, and titanium. The KCS10B grade with AlTiN PVD coating provides high to moderate wear resistance and toughness, making it a versatile choice across ISO material groups P, M, K, N, S, and H. The positive side clearance and honed cutting edge style help reduce built-up edge and extend tool life in demanding cuts. The screw-on holding method ensures secure seating and repeatability in production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eANSI code CPMT2151 and ISO code CPMT060204 for cross-reference compatibility\u003c\/li\u003e\n\u003cli\u003eKCS10B grade with AlTiN PVD coating for high wear resistance on steel, stainless steel, and superalloys\u003c\/li\u003e\n\u003cli\u003eMP chip breaker supports roughing and medium machining operations\u003c\/li\u003e\n\u003cli\u003e80-degree diamond (rhombic) insert shape with positive rake and 11-degree relief angle\u003c\/li\u003e\n\u003cli\u003e2 cutting edges with honed edge style for reduced built-up edge\u003c\/li\u003e\n\u003cli\u003eScrew-on insert holding method for secure, repeatable seating\u003c\/li\u003e\n\u003cli\u003eMulti-use geometry rated for turning, facing, and boring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in screw-on CPMT-style toolholders accepting ANSI size 2151 inserts. Compatible with applications across ISO material groups P (steel), M (stainless steel), K (cast iron), N (aluminum), S (superalloys and titanium), and H. Verify toolholder insert pocket geometry before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or CNC operators using the appropriate torque wrench for the screw-on insert clamp. Power down and lock out the machine spindle before changing inserts. Inspect the insert pocket and seating surface for chips or debris before seating the new insert. Follow the toolholder manufacturer torque specification for the clamping screw — do not overtighten.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CPMT2151\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CPMT060204\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80-Degree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCS10B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: MP (Roughing and Medium Machining)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.254 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Width\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.0938 inches (3\/32 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: 0.1102 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.0845 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 12 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\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: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Stainless Steel, Superalloys, Titanium, Steel, Cast Iron, Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Material Group Codes\u003c\/strong\u003e: P, M, K, N, S, H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01838 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: 6686921\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51746190033202,"sku":"6686921","price":50.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ad14119bf41daf94da86db9bf2ac7c55_01667c23-da95-449c-800a-7acb92165ddf.jpg?v=1788866923","url":"https:\/\/voomisupply.com\/products\/kennametal-6686921-cpmt2151mp-kcs10b-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}