{"product_id":"kennametal-1114252-ng4250k-kc730-grooving-insert-left-hand","title":"Kennametal 1114252 NG4250K KC730 Grooving Insert Left Hand","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1114252 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and cutoff operations on CNC lathes and turning centers. It carries the KC730 grade designation and features a physical vapor deposition (PVD) titanium nitride (TiN) coating for wear resistance and extended tool life. The insert is left-hand orientation with a 0.25-inch (6.35 mm) cutting width and a maximum depth of cut of 0.25 inches (6.35 mm). A positive rake angle of 10 degrees reduces cutting forces, and the K chip breaker geometry promotes controlled chip formation. This insert is installed by machinists and tool-room technicians in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThe 1114252 is suited for grooving applications on ferrous and non-ferrous workpiece materials classified under material grades C2, C3, and C4. Typical use cases include external groove profiling, undercut operations, and light parting on turned components. The insert size designation is 4250 with an insert seat size of 4, fitting standard Top Notch toolholders designed for that seat class. The lead angle of 3 degrees and included angle of 55 degrees make it appropriate for moderate-depth groove profiles within the 0.20-inch to 0.30-inch depth-of-cut range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eKC730 PVD TiN-coated solid carbide grade for wear resistance on a wide range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eLeft-hand cutting orientation with 0.25-inch cutting width and 0.25-inch maximum depth of cut\u003c\/li\u003e\n  \u003cli\u003ePositive rake angle (10 degrees) reduces cutting forces and heat generation at the edge\u003c\/li\u003e\n  \u003cli\u003eK chip breaker geometry for controlled chip evacuation during grooving passes\u003c\/li\u003e\n  \u003cli\u003eCorner radius of 0.0225 inches (0.57 mm) for defined groove shoulder geometry\u003c\/li\u003e\n  \u003cli\u003eTop Notch series seat size 4 for secure, repeatable indexing in compatible toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in Top Notch series toolholders accepting insert seat size 4 and the NG insert style. Compatible with material grades C2, C3, and C4 workpiece materials. Consult KENNAMETAL toolholder documentation to confirm seat and hand orientation match before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eGrooving inserts of this type are seated and clamped by a qualified machinist or toolroom technician following the toolholder manufacturer's clamping procedure. Power down and lock out the machine spindle before indexing or replacing the insert. Inspect the insert pocket and clamping components for debris or damage before seating the new insert. Do not exceed the rated maximum depth of cut for this insert geometry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC730\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut Range\u003c\/strong\u003e: 0.20 to 0.30 inches (5.00 to 10.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0225 inches (0.57 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 10 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 3 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 4250\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C3, C4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0646 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 1114252\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51730479513906,"sku":"1114252","price":336.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9bc028d62a6b528296fa60a0d2c5ba9e.jpg?v=1788718188","url":"https:\/\/voomisupply.com\/products\/kennametal-1114252-ng4250k-kc730-grooving-insert-left-hand","provider":"Voomi Supply","version":"1.0","type":"link"}