{"product_id":"kennametal-7026239-cnmg431fn-kcp25c-carbide-turning-insert","title":"Kennametal 7026239 CNMG431FN KCP25C Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 7026239 is a CNMG431FN carbide turning insert in the KCP25C grade, designed for high-productivity metal cutting on CNC lathes and turning centers. It features a multilayer CVD coating of TiCN and Al2O3, providing heat resistance and wear protection during continuous and interrupted cuts. The diamond-shaped insert (80-degree included angle) carries a negative rake geometry with a honed cutting edge and an FN chip breaker. Four usable cutting edges and compatibility with both clamp and pin holding methods make this a versatile option for production turning operations. Licensed machinists and CNC operators working in steel and cast iron applications will find this insert a direct fit in KENLOC-style toolholders.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for turning, facing, and boring operations on steel and cast iron workpieces. The KCP25C grade and CVD multilayer coating are optimized for moderate-to-high cutting speeds in P and K ISO material groups. It is a neutral-hand insert, appropriate for both right-hand and left-hand toolholder configurations depending on setup. Typical applications include roughing and semi-finishing passes in production machining environments where consistent tool life and chip control are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMultilayer CVD coating: TiCN base layer with Al2O3 outer layer for thermal and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003eFN chip breaker geometry with honed cutting edge for controlled chip formation\u003c\/li\u003e\n  \u003cli\u003eFour cutting edges per insert for extended tool economy\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond insert shape with negative rake for strong cutting edge geometry\u003c\/li\u003e\n  \u003cli\u003eCompatible with clamp and pin holding methods in KENLOC-style toolholders\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and ISO standards; ISO designation CNMG120404FN\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for KENLOC-series toolholders accepting CNMG431 inserts. Primary workpiece materials are steel (ISO P) and cast iron (ISO K). Suitable for turning, facing, and boring operations per the manufacturer's multi-use application classification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified CNC machinist or toolroom technician with the machine in a fully stopped and locked-out state. Ensure the toolholder pocket and seating surfaces are clean and free of chips before seating the insert. Use the appropriate clamp or pin hardware specified for the KENLOC toolholder to secure the insert without over-torquing. Index or replace the insert when surface finish degrades or flank wear reaches the end of acceptable limits per shop standards.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNMG431FN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG120404FN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCP25C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Layers\u003c\/strong\u003e: TiN, Al2O3, TiCN (Multilayer)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (80-degree included angle)\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\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\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: FN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiper Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5077 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (1\/64 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: 0.1691 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron\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: 0.03 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: 7026239\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51744630702386,"sku":"7026239","price":149.08,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b2dbdc325d6a8d898d225233dc082273_e428f4c6-e09d-4d03-b6b0-89671088724a.jpg?v=1788859217","url":"https:\/\/voomisupply.com\/products\/kennametal-7026239-cnmg431fn-kcp25c-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}