{"product_id":"kennametal-5641090-cpmt3251lf-carbide-turning-insert","title":"Kennametal 5641090 CPMT3251LF Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 5641090 is a solid carbide turning insert with ANSI designation CPMT3251LF and manufacturer grade KCM15B. It carries a multilayer TiCN and Al2O3 CVD coating applied via MTCVD process, providing moderate to high wear resistance with retained toughness. The insert features an 80-degree diamond (rhombic) shape, a positive rake angle of 5 degrees, an 11-degree relief angle, and a honed cutting edge style. With an inscribed circle of 0.375 inches and a corner radius of 0.0156 inches, it is sized for finishing and light machining operations. Licensed HVAC and machining technicians, toolroom machinists, and CNC operators install this insert in screw-on toolholders for turning, facing, and boring applications.\u003c\/p\u003e\n\u003cp\u003eThis insert is designed for finishing and light machining of steel, stainless steel, and superalloys including titanium. It is classified under primary workpiece material codes P and M, covering ISO material groups steel and stainless steel respectively. The neutral hand orientation and positive side clearance make it suitable for a wide range of screw-on toolholder setups. The LF chip breaker geometry is optimized for light chip loads and fine surface finishes in production turning environments, both in manual and CNC applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eANSI code CPMT3251 with ISO equivalent CPMT09T304 for broad toolholder compatibility\u003c\/li\u003e\n  \u003cli\u003eKCM15B grade with multilayer TiCN and Al2O3 CVD coating for wear resistance on steel and stainless steel\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond insert shape with positive rake and 11-degree relief angle for clean cutting action\u003c\/li\u003e\n  \u003cli\u003eLF chip breaker geometry suited for finishing and light machining operations\u003c\/li\u003e\n  \u003cli\u003eTwo cutting edges per insert; neutral hand with positive side clearance\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut of 0.1268 inches; inscribed circle of 0.375 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in screw-on toolholders accepting CPMT3251 or CPMT09T304 inserts. Suitable for turning, facing, and boring of steel, stainless steel, and superalloys and titanium per ISO material codes P and M. Conforms to ANSI and ISO insert standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Ensure the toolholder pocket and seating surfaces are clean and free of debris before seating the insert. Use the appropriate torx or hex key to secure the screw to the toolholder manufacturer's specified seating torque. Index or replace the insert when cutting edge wear affects surface finish or dimensional tolerance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CPMT3251\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CPMT09T304\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\u003eManufacturer Grade\u003c\/strong\u003e: KCM15B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN and Al2O3 multilayer CVD (MTCVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (1\/64 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 9.67 mm (0.3808 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1563 inches (5\/32 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Width\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1268 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inches (4.40 mm)\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: 5 degrees positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: LF (Finishing \/ Light Machining)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\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\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 per package (minimum order quantity: 5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 5641090\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731742654770,"sku":"5641090","price":211.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f2a2e008afa1f0e2e3a9c1392084150_dc97dc3a-e72b-42f1-b94d-e50db2365e1a.jpg?v=1788734435","url":"https:\/\/voomisupply.com\/products\/kennametal-5641090-cpmt3251lf-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}