{"product_id":"kennametal-1869975-dcmt3251lf-kt315-cermet-turning-insert","title":"Kennametal 1869975 DCMT3251LF KT315 Cermet Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1869975 is a DCMT3251LF KT315 cermet turning insert designed for precision metal cutting in CNC and manual lathe applications. It carries a multilayer PVD coating of TiN\/TiCN\/TiN over a cermet substrate, delivering high wear-resistance across steel, stainless steel, and cast iron workpiece materials. The insert features a 55-degree diamond (rhombic) shape with a positive rake angle of 5 degrees, a 7-degree relief angle, and a honed cutting edge style. Two cutting edges are available per insert. The LF chip breaker geometry is optimized for finishing and light machining passes, making this insert a go-to choice for achieving tight tolerances and fine surface finishes in production environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning, facing, boring, back turning, and back boring operations in both residential shop and production machining environments. Its screw-on holding method provides secure, repeatable seating in compatible toolholders. The KT315 grade is particularly effective when machining steel (P-class), stainless steel (M-class), and cast iron (K-class) at finishing-to-light-roughing parameters. CNC machinists, toolroom operators, and job-shop programmers working with these workpiece material groups will find this insert appropriate for low-to-moderate depth-of-cut passes requiring consistent tool life.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMultilayer PVD coating (TiN\/TiCN\/TiN) for high wear-resistance on steel, stainless steel, and cast iron\u003c\/li\u003e\n\u003cli\u003eLF chip breaker geometry optimized for finishing and light machining operations\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape with positive rake and positive side clearance for free-cutting action\u003c\/li\u003e\n\u003cli\u003eHoned cutting edge style reduces micro-chipping and extends tool life at light depths of cut\u003c\/li\u003e\n\u003cli\u003eScrew-on holding method ensures secure, repeatable insert indexing\u003c\/li\u003e\n\u003cli\u003eTwo usable cutting edges per insert; neutral hand for flexible toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a screw-on style DCMT-form turning insert conforming to ANSI insert code DCMT3251 and ISO insert code DCMT11T304, compatible with toolholders designed to accept this standard DCMT screw-on insert geometry. Minimum order quantity is 5 inserts; package quantity is 1.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator with the machine in a full stop, zero-energy state before indexing or replacing inserts. Use the appropriate Torx or hex key driver specified for the toolholder clamping screw to seat the insert without over-torquing the screw. Verify the insert is fully seated against the pocket locating surfaces before resuming operation. Follow the toolholder manufacturer guidelines for seating torque and insert pocket maintenance.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DCMT3251\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DCMT11T304\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\u003eManufacturer Grade\u003c\/strong\u003e: KT315\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Cermet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN\/TiCN\/TiN Multilayer PVD\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\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\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\u003eInsert Thickness\u003c\/strong\u003e: 5\/32 inches (0.1563 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inches (0.0156 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 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\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\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\u003eHolding Method\u003c\/strong\u003e: Screw-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel (P), Stainless Steel (M), Cast Iron (K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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: 0.0042 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: 1869975\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732336902450,"sku":"1869975","price":190.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d6534560d2d1713a6819d0763ec70b4a.jpg?v=1788741778","url":"https:\/\/voomisupply.com\/products\/kennametal-1869975-dcmt3251lf-kt315-cermet-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}