{"product_id":"kennametal-3752053-cnmg643rp-kck15-carbide-turning-insert","title":"Kennametal 3752053 CNMG643RP KCK15 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 3752053 is a CNMG643RP-style turning insert in grade KCK15, designed for general turning, facing, and boring operations on steel and cast iron workpieces. The insert features a multilayer CVD coating consisting of TiN, TiCN, and Al2O3, applied via MTCVD process, delivering high wear resistance across a broad range of cutting conditions. The 80-degree diamond (rhombic) shape with a negative rake and negative side clearance provides a strong cutting edge geometry. With a 3\/4-inch inscribed circle and a 3\/64-inch corner radius, the 3752053 suits medium to heavy roughing passes where edge stability and coating durability are priorities. Installed by machinists and CNC operators working with KENLOC-style toolholders.\u003c\/p\u003e\u003cp\u003eThe RP chip breaker geometry on this insert is optimized for roughing and medium machining applications. It is suited for use on steel (ISO P) and cast iron (ISO K) workpieces where high wear resistance is required. The neutral hand orientation and four available cutting edges make it a practical choice for production turning cells running a variety of part geometries. Compatible with clamp and pin insert holding methods standard to CNMG-style toolholders. The ANSI insert code is CNMG643 and the ISO insert code is CNMG190612, allowing straightforward cross-reference with toolholder and pocket specifications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMultilayer CVD coating: TiN, TiCN, and Al2O3 via MTCVD process for high wear resistance on steel and cast iron\u003c\/li\u003e\n\u003cli\u003e80-degree diamond (rhombic) insert shape with negative rake and negative side clearance for strong cutting edge support\u003c\/li\u003e\n\u003cli\u003eRP chip breaker geometry rated for roughing and medium machining operations\u003c\/li\u003e\n\u003cli\u003eFour cutting edges per insert, neutral hand orientation\u003c\/li\u003e\n\u003cli\u003eCompatible with clamp and pin holding methods in CNMG KENLOC-style toolholders\u003c\/li\u003e\n\u003cli\u003eChamfered and honed cutting edge style for improved edge strength and chip control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eThe 3752053 conforms to ANSI insert code CNMG643 and ISO insert code CNMG190612. It is designed for use in KENLOC-series toolholders and any CNMG643-pocket toolholder accepting clamp or pin holding methods. Primary workpiece materials are steel (ISO P) and cast iron (ISO K); secondary workpiece material code N is also supported.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert installation and indexing should be performed by a qualified machinist or CNC tooling technician with the machine powered down and in a safe, locked-out state. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer  -  do not overtighten the clamp screw, as this can fracture the carbide substrate. Inspect the insert pocket and seating surface for chips or debris before seating the insert. Verify correct insert orientation and chip breaker direction relative to the intended cut before resuming machine operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNMG643\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNMG190612\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCK15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN, TiCN, Al2O3 (Multilayer CVD, MTCVD process)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: RP (Roughing, Medium Machining)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 3\/64 inch (0.0469 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 19.34 mm (0.7616 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Width\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.3125 inches (7.93 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.25 mm (0.0492 inches)\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 Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Chamfered, Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P), Cast Iron (K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C3, C4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package (MOQ: 5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 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: 3752053\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743465931058,"sku":"3752053","price":369.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6165f7353a3c7ec854fdcf8bed4147dd_3211848e-e517-4dd8-bb20-8c2fe4169026.jpg?v=1788847325","url":"https:\/\/voomisupply.com\/products\/kennametal-3752053-cnmg643rp-kck15-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}