{"product_id":"kennametal-3753641-rnmg43rn-kcp30-round-turning-insert","title":"Kennametal 3753641 RNMG43RN KCP30 Round Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 3753641 is a round RNMG43RN turning insert in the KCP30 carbide grade, designed for external turning, facing, and boring operations on CNC and manual lathes. The insert carries a multilayer MTCVD coating sequence of TiN, TiCN, and Al2O3, targeting moderate to high wear resistance with sufficient toughness for interrupted and continuous cuts in steel and stainless steel. With a 0.5000-inch inscribed circle, a 0.2500-inch corner radius, and 8 usable cutting edges, this insert delivers a high edge count per unit, keeping tooling cost per edge competitive in high-volume turning cells. It belongs to KENNAMETAL's KENLOC series and carries an RN chip breaker geometry rated for roughing and medium machining applications.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for roughing and medium-duty turning of steel (ISO P) and stainless steel (ISO M) workpieces in both job-shop and production environments. The round insert shape provides a full-radius cutting profile, making it effective for profiling passes and contour turning where a continuous edge geometry is required. It accommodates both clamp and pin holding methods, fitting standard RNMG-style toolholders. Multi-use applications include turning, facing, and boring, making it a versatile choice for operators running varied part geometries on a single setup. The neutral hand designation means it seats in standard neutral-handed RNMG toolholders without restriction.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRound insert shape (RNMG) with full radius and 8 cutting edges for maximum edge utilization\u003c\/li\u003e\n  \u003cli\u003eKCP30 grade with multilayer MTCVD coating (TiN \/ TiCN \/ Al2O3) for wear resistance in steel and stainless steel\u003c\/li\u003e\n  \u003cli\u003eRN chip breaker geometry rated for roughing and medium machining operations\u003c\/li\u003e\n  \u003cli\u003e0.2500-inch corner radius and 0.5000-inch inscribed circle for robust depth-of-cut capability\u003c\/li\u003e\n  \u003cli\u003eCompatible with both clamp and pin holding methods in standard RNMG toolholders\u003c\/li\u003e\n  \u003cli\u003eChamfered and honed cutting edge preparation for edge strength and surface finish consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement fitting standard RNMG43-style turning toolholders. Compatible with clamp or pin holding systems. Verify toolholder bore and seating pocket dimensions against ANSI insert code RNMG43 and ISO insert code RNMG120400 before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully in the toolholder pocket and confirm the clamp or pin is secure before resuming cuts. Do not exceed the maximum depth of cut of 0.0492 inches (1.25 mm) as recommended for this insert geometry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: RNMG43\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: RNMG120400\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: RNMG43RN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCP30\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: R - Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: RN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker Operation\u003c\/strong\u003e: Roughing and Medium Machining\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN \/ TiCN \/ Al2O3 (Multilayer MTCVD CVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.0492 inches (1.25 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees (Negative Rake)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Chamfered and Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P), Stainless Steel (M)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\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: 0.1 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: 3753641\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743505678642,"sku":"3753641","price":159.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1918b9c594ccc7759236f2366cf8f1f9.jpg?v=1788847782","url":"https:\/\/voomisupply.com\/products\/kennametal-3753641-rnmg43rn-kcp30-round-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}