{"product_id":"kennametal-4171823-cnmg4305fn-kcu10-turning-insert","title":"Kennametal 4171823 CNMG4305FN KCU10 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4171823 is a CNMG-style indexable turning insert in grade KCU10 with a PVD-applied TiAlN coating. It features an 80-degree diamond insert shape, a 0.5-inch inscribed circle, and a corner radius of 0.0079 inches. The FN chip breaker geometry is designed for controlled chip formation during finishing and medium-duty turning operations. With four cutting edges and a neutral hand orientation, it delivers consistent performance across turning, facing, and boring applications. The carbide substrate paired with TiAlN coating provides thermal and wear resistance suited to demanding materials. Licensed machinists and CNC turning center operators install this insert in KENLOC-compatible toolholders as part of production and repair operations.\u003c\/p\u003e\n\u003cp\u003eThis insert is engineered for use on steel, stainless steel, superalloys, and titanium workpiece materials, corresponding to ISO material codes P, M, and S. Typical applications include external turning, facing passes, and boring operations on CNC lathes and turning centers in both production and job-shop environments. The honed cutting edge style and negative rake geometry make it well-suited for interrupted cuts and work-hardened materials where edge stability is critical. It is classified under ISO code CNMG120402FN and meets both ANSI and ISO insert standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eKCU10 carbide grade with PVD TiAlN coating for elevated thermal resistance and extended tool life\u003c\/li\u003e\n  \u003cli\u003eFN chip breaker geometry optimized for finishing and medium cuts on steel and stainless steel\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond insert shape with negative rake provides a strong cutting edge for interrupted and continuous cuts\u003c\/li\u003e\n  \u003cli\u003eFour usable cutting edges per insert to maximize cost-per-edge efficiency\u003c\/li\u003e\n  \u003cli\u003eHoned cutting edge style reduces micro-chipping on difficult-to-machine superalloys and titanium\u003c\/li\u003e\n  \u003cli\u003eCompatible with clamp and pin insert-holding methods for flexible toolholder use\u003c\/li\u003e\n  \u003cli\u003eMulti-use geometry supports turning, facing, and boring without changing insert style\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-specification replacement insert conforming to ANSI and ISO standard CNMG4305FN (ISO CNMG120402FN) geometry, compatible with KENLOC-series toolholders and any CNMG-standard clamp or pin-lock holder accepting a 0.5-inch inscribed circle insert.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician with the machine in a stopped, locked-out state before indexing or replacing inserts. Use the correct torque wrench and manufacturer-specified hardware when seating the insert in the toolholder pocket to ensure proper clamping without over-torquing the clamp screw. Inspect the insert pocket and seating surfaces for chips or debris before installing a new edge. Always verify insert orientation and confirm the chip breaker side is positioned correctly before resuming cutting operations.\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: CNMG4305FN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG120402FN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 80 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCU10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: FN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0079 inches (1\/128 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5077 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\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\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\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: 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, Stainless Steel, Superalloys and Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C3, C4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 4171823\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51730131812658,"sku":"4171823","price":182.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0244d043068cc456de5638e1b734f238.jpg?v=1788712274","url":"https:\/\/voomisupply.com\/products\/kennametal-4171823-cnmg4305fn-kcu10-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}