{"product_id":"kennametal-1163281-npr51-k313-carbide-profiling-insert","title":"Kennametal 1163281 NPR51 K313 Carbide Profiling Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1163281 is a solid carbide profiling and turning insert in the Top Notch series, designed for precision material removal on CNC lathes and turning centers. Manufactured to the NPR51 insert style with a K313 fine grain carbide grade, this insert features an uncoated WC-Co substrate suited for cutting non-ferrous metals, superalloys, and titanium. It carries a negative rake angle of 10 degrees and a 55-degree included angle, producing a parallelogram shape with four usable cutting edges. The corner radius measures 0.0156 inches (0.40 mm), and the maximum depth of cut reaches 0.1256 inches. Installation uses a screw-holding method, making indexing straightforward on compatible Top Notch toolholders.\u003c\/p\u003e\u003cp\u003eThis insert is applied in profiling and turning operations where tight contour control is required. The fine grain K313 carbide grade is well suited for finishing and semi-finishing passes on non-ferrous workpiece materials including aluminum alloys and copper, as well as superalloys and titanium where edge sharpness and wear resistance are critical. The uncoated WC-Co finish maintains a sharp cutting edge with minimal built-up edge risk on gummy materials. It is typically installed by machinists and CNC tool-setup technicians in production turning environments requiring repeatable insert geometry.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNPR51 insert style with ISO code KCGX110304R15 for cross-reference identification\u003c\/li\u003e\n\u003cli\u003eFine grain K313 solid carbide grade, uncoated WC-Co substrate for non-ferrous and superalloy applications\u003c\/li\u003e\n\u003cli\u003eFour cutting edges on a parallelogram shape maximize insert utilization per piece\u003c\/li\u003e\n\u003cli\u003e0.0156-inch corner radius supports contour profiling and finish turning\u003c\/li\u003e\n\u003cli\u003eNegative rake at 10 degrees with 0-degree relief angle for stable, controlled cutting action\u003c\/li\u003e\n\u003cli\u003eScrew-held, right-hand orientation for secure seating in Top Notch series toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Top Notch series toolholders accepting the NPR51 insert style. Compatible workpiece materials include non-ferrous metals (material code N) and superalloys and titanium (material code S) as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis insert is installed and indexed by qualified machinists or CNC setup technicians. Power down and de-energize the machine tool before indexing or replacing inserts. Use the manufacturer-specified torx or hex key to seat the clamping screw to the toolholder specification — do not overtighten, as this can chip the carbide substrate. Inspect the insert pocket for wear or debris before seating a new edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NPR51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: K313\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Fine Grain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Uncoated WC-Co\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Parallelogram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 10 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\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\u003eInsert Thickness\u003c\/strong\u003e: 0.1250 inches (3.18 mm)\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\u003eWidth \/ Inscribed Circle\u003c\/strong\u003e: 0.2490 inches\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\u003eChipbreaker\u003c\/strong\u003e: Common\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: Non-Ferrous Metal; Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: KCGX110304R15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0086 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 1163281\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731509969202,"sku":"1163281","price":149.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/82fd923b01ba24586fac829f29c3374f.jpg?v=1788731930","url":"https:\/\/voomisupply.com\/products\/kennametal-1163281-npr51-k313-carbide-profiling-insert","provider":"Voomi Supply","version":"1.0","type":"link"}