{"product_id":"kennametal-3769130-vbmt221fp-kcm15-carbide-turning-insert","title":"Kennametal 3769130 VBMT221FP KCM15 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 3769130 is a VBMT221FP screw-on turning insert in grade KCM15, designed for precision finishing operations on CNC lathes and turning centers. The insert features a 35-degree diamond (rhombic) shape with a positive rake angle of 15 degrees and a positive side clearance, producing clean, accurate cuts at controlled depths. The KCM15 grade uses a multilayer MTCVD coating of TiCN and Al2O3, targeting moderate to high wear resistance across steel and stainless steel workpieces. With a 0.0156-inch corner radius and an FP chip breaker geometry, this insert is optimized for finishing passes requiring tight tolerances and good surface finish. Two cutting edges per insert extend service life between indexing cycles.\u003c\/p\u003e\u003cp\u003eThis insert is suited for finish turning, facing, boring, back turning, and back boring applications in production and job-shop environments. Primary workpiece materials include steel (P-grade applications), stainless steel (M-grade applications), superalloys, and titanium. The VBMT style and screw-on holding method make it compatible with standard VBMT toolholders used in both light and moderate-duty turning setups. Typical users include CNC machinists and toolroom operators running moderate material removal at finishing parameters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKCM15 grade with multilayer MTCVD TiCN and Al2O3 coating for wear resistance in steel and stainless steel\u003c\/li\u003e\n\u003cli\u003e35-degree diamond (rhombic) insert shape with positive rake and positive side clearance for clean finish cuts\u003c\/li\u003e\n\u003cli\u003eFP chip breaker geometry optimized for finishing operations\u003c\/li\u003e\n\u003cli\u003e0.0156-inch corner radius for precise edge definition on finish passes\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut of 0.0492 inches (1.25 mm) appropriate for light finishing\u003c\/li\u003e\n\u003cli\u003eTwo cutting edges per insert; neutral hand orientation for flexible toolholder use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a screw-on replacement insert for VBMT-style turning toolholders. Meets ANSI insert code VBMT221 and ISO insert code VBMT110304. Compatible with toolholders rated for the VBMT insert style, screw-on clamping method, and a 0.25-inch inscribed circle.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Secure the insert with the screw-on fastener to the torque specification listed in the toolholder documentation — do not overtighten, as carbide inserts are brittle and can crack under excess clamp load. Verify seating and edge orientation before resuming cuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: VBMT221\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: VBMT110304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: V - Diamond (Rhombic) 35 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCM15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN and Al2O3 (Multilayer MTCVD CVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: FP (Finishing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (1\/64 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.8718 inches (11.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.125 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\u003eHole Diameter\u003c\/strong\u003e: 0.1102 inches (2.80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 5 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\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\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\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\u003eApplicable Operations\u003c\/strong\u003e: Turning, Facing, Boring, Back Turning, Back Boring\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: C2, C3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: 3769130\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51755649007922,"sku":"3769130","price":249.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/34ee5870d3425c1c14176545c473670e_101ea3d3-c9f4-4311-bd4c-ad58ed8055f7.jpg?v=1788957564","url":"https:\/\/voomisupply.com\/products\/kennametal-3769130-vbmt221fp-kcm15-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}