{"product_id":"sandvik-coromant-7861055-turning-insert-vbmt332-pf-4425","title":"Sandvik Coromant 7861055 Turning Insert VBMT332-PF 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 7861055 is a solid carbide turning insert in the CoroTurn 107 series, designed for precision finishing operations on steel and cast iron workpieces. It carries the ANSI insert code VBMT332 and ISO code VBMT 16 04 08-PF 4425. The insert features a 35-degree diamond (rhombic) shape with a neutral hand orientation, a 3\/8 inch inscribed circle, and a 1\/32 inch corner radius. The CVD-applied multilayer coating — Al2O3, TiN, and TiCN — delivers high wear resistance with moderate toughness, making this insert well suited for continuous and semi-continuous steel turning at finishing feed rates and depths of cut.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for light finishing passes on steel (ISO material group P) and secondary use on cast iron (ISO material group K). The PF chip breaker geometry controls chip formation at low feed rates and shallow depths, reducing built-up edge and maintaining surface finish quality. It is commonly installed in CoroTurn 107 toolholders that accept VBMT-style inserts. Machinists running CNC lathes, turret lathes, or manual turning centers will find this insert appropriate for achieving tight tolerances and fine surface finishes on medium to small steel components.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e35-degree diamond (rhombic) insert shape — ANSI code VBMT332, ISO code VBMT 16 04 08\u003c\/li\u003e\n  \u003cli\u003eCVD multilayer coating: Al2O3, TiN, and TiCN for wear resistance on steel\u003c\/li\u003e\n  \u003cli\u003ePF chip breaker geometry optimized for steel finishing operations\u003c\/li\u003e\n  \u003cli\u003eNeutral hand insert — compatible with both right-hand and left-hand holder configurations\u003c\/li\u003e\n  \u003cli\u003ePositive side clearance (5-degree relief angle) reduces cutting forces on finishing passes\u003c\/li\u003e\n  \u003cli\u003eTwo cutting edges per insert; screw and clamp holding methods supported\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CoroTurn 107 series toolholders accepting VBMT-style inserts. Primary workpiece material is steel (ISO P); secondary workpiece material is cast iron (ISO K). Insert holding method is compatible with clamp and screw-style toolholder systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and insert screw for the specific CoroTurn 107 toolholder to avoid over-torquing the clamping screw. Inspect the insert seat and chip breaker pocket for debris before seating a new insert, as contamination can affect seating accuracy and cutting geometry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: VBMT332\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: VBMT 16 04 08-PF 4425\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\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Al2O3, TiN, TiCN (CVD process)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PF (Finishing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (0.375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/32 inch (0.0313 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inch (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 5 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inches\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: Clamp and Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (ISO P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron (ISO K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroTurn 107\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.54 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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7861055\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51727932064050,"sku":"7861055","price":45.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1a6a2fbf5d640d86775ad28bc24342fa_21b9ef61-ecc1-4c50-9c19-67db487992d7.jpg?v=1788684689","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7861055-turning-insert-vbmt332-pf-4425","provider":"Voomi Supply","version":"1.0","type":"link"}