{"product_id":"kennametal-4121715-vnmg332ms-kcu25-carbide-turning-insert","title":"Kennametal 4121715 VNMG332MS KCU25 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4121715 is a VNMG332MS style solid carbide turning insert in the KCU25 grade, designed for high-performance metal cutting on CNC lathes and turning centers. The insert features a 35-degree diamond shape (V-shape code), a 3\/8-inch inscribed circle, and a 1\/32-inch corner radius. The AlTiN coating is applied via PVD process, providing strong thermal and oxidation resistance suited to interrupted cuts and tough workpiece materials. The MS chip breaker geometry, combined with a honed cutting edge and negative rake angle of 13 degrees, controls chip flow and reduces built-up edge when turning steel, stainless steel, superalloys, and titanium. Licensed HVAC techs install this type of equipment. This insert is installed by machinists and CNC operators in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThe 4121715 is engineered for turning, facing, boring, back turning, and back boring operations on a wide range of workpiece materials coded P, M, and S under ISO classification. The MS chip breaker is specifically developed for medium-finish to roughing passes on steel and stainless steel, and it handles the work-hardening behavior of superalloys and titanium effectively. The insert seats in a KENLOC-style toolholder using a clamp-and-pin holding method, which ensures consistent edge indexing across all four cutting edges. Maximum depth of cut reaches 0.4354 inches, and the insert length is 1.3076 inches.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAlTiN PVD coating for thermal resistance and extended tool life in ferrous and exotic alloy cutting\u003c\/li\u003e\n  \u003cli\u003e35-degree diamond (VNMG) geometry with negative rake for strong, supported cutting edges\u003c\/li\u003e\n  \u003cli\u003eMS chip breaker controls chip flow across turning, facing, boring, back turning, and back boring operations\u003c\/li\u003e\n  \u003cli\u003eFour usable cutting edges per insert — neutral hand orientation for flexible toolholder use\u003c\/li\u003e\n  \u003cli\u003eClamp and pin holding method provides rigid insert location in KENLOC-compatible toolholders\u003c\/li\u003e\n  \u003cli\u003eHoned cutting edge style reduces microchipping and supports consistent surface finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in KENLOC-style toolholders that accept VNMG 332 inserts with clamp-and-pin retention. Compatible with turning centers and CNC lathes running steel (ISO P), stainless steel (ISO M), superalloys, and titanium (ISO S) workpiece materials. Conforms to ANSI and ISO standards; ISO code VNMG160408MS.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the turret is locked before indexing or replacing inserts. Seat the insert firmly against the toolholder pocket locating surfaces before engaging the clamp-and-pin mechanism — partial seating causes premature edge failure. Inspect the insert pocket and clamp hardware for wear or debris before each insert change.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: VNMG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: VNMG332MS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: VNMG160408MS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCU25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 35 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/32 inches (0.0313 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 1.3076 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.4354 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\u003eRake Angle\u003c\/strong\u003e: 13 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: MS\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 Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring, Back Turning, Back Boring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.02 pounds\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\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: 4121715\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51727104147762,"sku":"4121715","price":223.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dc56a973f667d70fa853679169ce6fd4.jpg?v=1788673389","url":"https:\/\/voomisupply.com\/products\/kennametal-4121715-vnmg332ms-kcu25-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}