{"product_id":"kennametal-3643854-npr51-kd1425-profiling-insert-carbide","title":"Kennametal 3643854 NPR51 KD1425 Profiling Insert Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 3643854 is a carbide profiling insert in the Top Notch series, designated NPR51 with manufacturer grade KD1425. It carries a parallelogram shape with a 55-degree included angle, a 0-degree relief angle, and a negative rake geometry. The insert measures 0.375 inches in length and 0.125 inches in thickness, with a corner radius of 0.0156 inches (0.40 mm). With four cutting edges and an uncoated PCD finish, it is suited for high-precision profiling and turning operations on non-ferrous metals. Installation is performed by screw-holding, right-hand orientation, and the insert conforms to the NPR51 and KCGX110304R15 standards.\u003c\/p\u003e\n\u003cp\u003eThis insert is designed for profiling and turning applications where non-ferrous workpiece materials such as aluminum, copper, and their alloys are machined. The KD1425 grade with uncoated PCD coating classification delivers consistent edge integrity at the cutting depths this style supports, with a maximum depth of cut of 0.1256 inches. It is typically used in CNC turning centers and manual lathes by machinists and tool-and-die professionals working in production or job-shop environments requiring repeatable profile geometry on non-ferrous parts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCarbide insert with KD1425 manufacturer grade optimized for non-ferrous metal (N10, N20 material grades)\u003c\/li\u003e\n  \u003cli\u003eFour cutting edges extend usable tool life per insert\u003c\/li\u003e\n  \u003cli\u003eParallelogram shape with 55-degree included angle and 0-degree relief for profiling geometry\u003c\/li\u003e\n  \u003cli\u003eScrew-holding method with right-hand orientation for secure, repeatable seating\u003c\/li\u003e\n  \u003cli\u003eCorner radius of 0.0156 inches (0.40 mm) for controlled surface finish on profiled contours\u003c\/li\u003e\n  \u003cli\u003eConforms to NPR51 and ISO code KCGX110304R15 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in Top Notch series toolholders accepting NPR51-style inserts. Compatible with screw-clamp insert seats requiring a parallelogram insert with a 0.249-inch inscribed circle and right-hand cutting orientation. Verify toolholder pocket specifications against the NPR51 and KCGX110304R15 designations before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine before seating or replacing inserts. Use the appropriate torx or hex key driver specified by the toolholder manufacturer when tightening the clamping screw — do not overtighten, as carbide inserts are brittle and can fracture under excessive clamping force. Inspect the pocket seat and clamping screw threads for wear or debris before seating a new insert.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NPR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 51\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KD1425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: N10, N20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Non-Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Parallelogram\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: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.3769 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\u003eThickness\u003c\/strong\u003e: 0.125 inches (3.18 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth (Inscribed Circle)\u003c\/strong\u003e: 0.249 inches\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\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1256 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: Common\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Classification\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: PCD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: KCGX110304R15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NPR51, KCGX110304R15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Profiling, Turning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.035 pounds\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: 3643854\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51746727067954,"sku":"3643854","price":212.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dfc258b68ed3d21f4c4287589e093639.jpg?v=1788873188","url":"https:\/\/voomisupply.com\/products\/kennametal-3643854-npr51-kd1425-profiling-insert-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}