{"product_id":"kennametal-1161146-cnmp431-k68-carbide-turning-insert","title":"Kennametal 1161146 CNMP431 K68 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1161146 is a solid carbide turning insert in the CNMP431 geometry, part of the KENLOC series. It features an 80-degree diamond (rhombic) shape, a 0.5 inch inscribed circle, and a 1\/64 inch (0.0156 inch) corner radius. The insert is uncoated bright finish, carries a negative rake and negative side clearance, and has 4 usable cutting edges secured by clamp and pin holding methods. Grade K68 is engineered for high wear-resistance to moderate wear-resistance and toughness across stainless steel, cast iron, and aluminum and non-ferrous material families. Licensed HVAC techs, machinists, and tool-crib professionals will recognize this as a general-purpose finishing and medium-machining insert for CNC lathes and boring applications.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning, facing, and boring operations on non-ferrous metals, superalloys, and titanium as primary workpiece materials, with secondary applicability across ISO material codes P, M, K, N, and S. The chip breaker geometry is rated for medium machining conditions. The honed cutting edge style reduces micro-chipping on difficult materials. Maximum depth of cut is 1.25 mm (0.0492 inch), positioning this insert for finishing and light semi-finish passes rather than heavy stock removal. It conforms to both ANSI and ISO insert standards (ANSI code CNMP431, ISO code CNMP120404).\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade K68 uncoated carbide delivers high wear-resistance on cast iron, stainless steel, and non-ferrous workpieces\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape with 4 indexable cutting edges maximizes tool life per insert\u003c\/li\u003e\n\u003cli\u003eHoned cutting edge style reduces chipping during interrupted cuts and on difficult alloys\u003c\/li\u003e\n\u003cli\u003eNegative rake and negative side clearance geometry for robust edge strength under moderate chip loads\u003c\/li\u003e\n\u003cli\u003eCompatible with clamp and pin holding methods for secure KENLOC toolholder mounting\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and ISO dimensional standards for reliable cross-reference and fit verification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement turning insert for KENLOC series toolholders accepting CNMP431 geometry inserts. Conforms to ANSI insert code CNMP431 and ISO insert code CNMP120404 for broad toolholder compatibility verification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC toolroom technicians. Before indexing or replacing inserts, ensure the machine spindle is fully stopped and locked out per applicable machine safety procedures. Seat the insert fully against the toolholder pocket and torque the clamp or pin fastener per the toolholder manufacturer specification. Inspect the pocket and shim for wear or carbide debris before seating a new insert to avoid seating errors or premature edge failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNMP431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNMP120404\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: K68\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Uncoated (Bright)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\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: 3\/16 inch (0.1875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0156 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches (5.16 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.25 mm (0.0492 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: 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\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Common (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\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Turning, Facing, Boring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Non-Ferrous Metal, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0196 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: 1161146\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732062634290,"sku":"1161146","price":160.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95d5ef465c008fe39813b31ade0f205c.jpg?v=1788738794","url":"https:\/\/voomisupply.com\/products\/kennametal-1161146-cnmp431-k68-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}