{"product_id":"kennametal-1620372-profiling-insert-npgr51-kt315-cermet","title":"Kennametal 1620372 Profiling Insert NPGR51 KT315 Cermet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1620372 is a cermet-grade profiling and turning insert in the Top Notch series, designed for precision material removal on steel and stainless steel workpieces. It carries the NPGR51 style designation and manufacturer grade KT315, a PVD-coated cermet with TiN and TiCN coating layers suited for finishing and semi-finishing operations. The insert has a parallelogram shape with a 55-degree included angle, a positive rake geometry at 10 degrees, and an 8-degree relief angle. With 2 cutting edges and a right-hand orientation, it is a standard choice for CNC turning centers and profiling applications where consistent edge integrity is required.\u003c\/p\u003e\u003cp\u003eThis insert is intended for profiling and turning operations on steel and stainless steel, corresponding to ISO material codes P and M. The KT315 cermet grade performs well in light to medium cutting conditions where surface finish and dimensional accuracy are priorities. It fits Top Notch series toolholders that accept NPGR51 geometry inserts. The insert is typically used in production turning environments by machining professionals and tool-and-die technicians running CNC lathes and turning centers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCermet substrate with PVD-applied TiN and TiCN coating for wear resistance in steel and stainless steel cutting\u003c\/li\u003e\n\u003cli\u003ePositive rake angle of 10 degrees reduces cutting forces and supports clean surface finishes\u003c\/li\u003e\n\u003cli\u003eTwo cutting edges per insert for extended tool life between changeovers\u003c\/li\u003e\n\u003cli\u003eRight-hand cut orientation with common chipbreaker geometry\u003c\/li\u003e\n\u003cli\u003eParallelogram shape with 55-degree included angle and 8-degree relief angle for profiling clearance\u003c\/li\u003e\n\u003cli\u003eISO code KCGR110304R08 for cross-reference with standard toolholder catalogs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in Top Notch series toolholders accepting NPGR51R geometry inserts. Compatible standards include NPGR51R and ISO KCGR110304R08. Primary workpiece materials are steel and stainless steel (ISO P and M classifications).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or replacing the insert. Secure the insert using the appropriate Top Notch clamp mechanism and verify proper seating before resuming cuts. Do not exceed the recommended depth of cut for the toolholder and insert combination as specified in the toolholder documentation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NPGR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 51R\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\u003eMaterial Grade\u003c\/strong\u003e: P10, K10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Parallelogram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.3750 inches (9.53 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Height\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1250 inches (3.18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (0.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.2500 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: 8 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 10 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: Common\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Finish\u003c\/strong\u003e: TiN, TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: KCGR110304R08\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Profiling, Turning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0073 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: 1620372\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51739141996850,"sku":"1620372","price":173.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d5e31daef0675e1f3e0f86e37f814d5d.jpg?v=1788810166","url":"https:\/\/voomisupply.com\/products\/kennametal-1620372-profiling-insert-npgr51-kt315-cermet","provider":"Voomi Supply","version":"1.0","type":"link"}