{"product_id":"kennametal-3751587-dpmt3251lf-kcp25-turning-insert","title":"Kennametal 3751587 DPMT3251LF KCP25 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 3751587 is a solid carbide turning insert designated DPMT3251LF in the KCP25 grade. It carries a multilayer CVD coating — TiCN plus Al2O3 applied via MTCVD process — engineered to deliver moderate wear resistance and toughness across steel and aluminum or non-ferrous workpiece materials. The insert measures 11.63 mm (0.9156 inches) in length with a 3\/8-inch inscribed circle, a 5\/32-inch thickness, and a 1\/64-inch corner radius. The LF chip breaker geometry is configured for finishing and light machining operations, making this insert well suited for applications where surface finish and dimensional accuracy are the primary objectives. It is installed by machinists and CNC operators in screw-on toolholders.\u003c\/p\u003e\u003cp\u003eThis insert fits screw-on style toolholders designed for DPMT-style inserts and is appropriate for turning, facing, boring, back turning, and back boring operations. The 55-degree diamond (rhombic) shape with positive rake and positive side clearance supports access in tight cutting geometries. Primary workpiece materials include steel (P-grade applications) and aluminum or non-ferrous materials (N-grade applications). The KCP25 grade is rated for moderate wear resistance and toughness, positioning it as a general-purpose finishing grade rather than a heavy roughing option. Maximum depth of cut is 1.25 mm (0.0492 inches).\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKCP25 grade with multilayer CVD TiCN and Al2O3 coating for wear resistance in steel and non-ferrous cutting\u003c\/li\u003e\n\u003cli\u003eLF chip breaker geometry optimized for finishing and light machining\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape (DPMT) with positive rake and positive side clearance\u003c\/li\u003e\n\u003cli\u003eScrew-on holding method for secure, repeatable insert positioning\u003c\/li\u003e\n\u003cli\u003eTwo cutting edges per insert\u003c\/li\u003e\n\u003cli\u003eHoned cutting edge style for controlled edge strength at light depths of cut\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement insert for screw-on DPMT toolholders conforming to ANSI insert code DPMT3251 and ISO insert code DPMT11T304. Multi-use application across turning, facing, boring, back turning, and back boring setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or CNC service personnel. Power down and lock out the machine spindle before changing inserts. Seat the insert fully against the pocket locating surfaces before tightening the clamping screw, and inspect the screw and pocket for wear or debris prior to installation. Follow the toolholder manufacturer's torque guidance for the clamping screw — do not overtighten, as carbide inserts are brittle and will fracture under excessive clamping force.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DPMT3251\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DPMT11T304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Grade\u003c\/strong\u003e: KCP25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN and Al2O3 (Multilayer CVD, MTCVD process)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: LF (Finishing and Light Machining)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 11.63 mm (0.9156 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 5\/32 inch (0.1563 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\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\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\u003eSide Clearance\u003c\/strong\u003e: Positive\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\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: 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\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron, Aluminum and Non-Ferrous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C3, C6, C7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\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: 0.1 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: 3751587\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732985643314,"sku":"3751587","price":227.96,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7cd3172b3c84c433acd7c6b904e87d2c.jpg?v=1788750023","url":"https:\/\/voomisupply.com\/products\/kennametal-3751587-dpmt3251lf-kcp25-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}