{"product_id":"sandvik-coromant-7860484-turning-insert-tcmt21-51-um-4415","title":"Sandvik Coromant 7860484 Turning Insert TCMT21.51-UM 4415","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860484 is a TCMT-style triangular turning insert from the CoroTurn 107 series, designed for external turning and boring operations on CNC lathes and turning centers. The insert is manufactured from solid carbide and features a CVD-applied multilayer coating of Al2O3, TiCN, and TiN, which provides thermal resistance and wear protection during continuous and light interrupted cuts. With a 0.25-inch inscribed circle, a corner radius of 0.40 mm (0.0156 inches), and a neutral hand orientation, this insert suits precision finishing and semi-finishing passes. Licensed machinists and CNC operators working in production or job-shop environments are the typical end users.\u003c\/p\u003e\u003cp\u003eThis insert is rated for primary use on steel (ISO material code P) and secondary use on cast iron (ISO material code K), making it a general-purpose option for shops that run both material types on the same machine. The CoroTurn 107 series is engineered for positive-rake toolholders that accept TCMT geometry inserts with clamp or screw holding methods. The UM chip breaker geometry supports controlled chip formation at moderate cutting parameters, keeping the work area clear during turning cycles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD-coated with Al2O3, TiCN, and TiN for extended tool life on steel and cast iron\u003c\/li\u003e\n\u003cli\u003eTriangle insert shape with 60-degree included angle and 3 usable cutting edges\u003c\/li\u003e\n\u003cli\u003e0.40 mm corner radius for semi-finishing and finishing surface quality\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation fits both right-hand and left-hand toolholder setups\u003c\/li\u003e\n\u003cli\u003eUM chip breaker geometry for controlled chip evacuation at moderate feed rates\u003c\/li\u003e\n\u003cli\u003eISO code TCMT 11 02 04-UM 4415 for cross-referencing to standard toolholder catalogs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CoroTurn 107 series toolholders that accept TCMT geometry inserts with clamp or screw holding. Compatible with toolholder setups specifying TCMT 11 02 04 insert geometry. Verify toolholder pocket geometry and ISO insert code before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert installation and indexing should be performed by a qualified machinist or CNC operator with the machine powered down and the spindle locked. Use the correct torque wrench and insert screw specified by the toolholder manufacturer when securing with a screw-held pocket. Inspect the insert seat for chips or debris before seating the new insert, as contamination in the pocket will affect runout and surface finish. Follow the toolholder manufacturer's clamping instructions and the machine tool builder's safe tooling change procedures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TCMT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroTurn 107\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: TCMT 11 02 04-UM 4415\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4415\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: Al2O3, TiCN, TiN (CVD process)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: UM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches (0.2500 decimal inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.40 mm (0.0156 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/32 inches (0.0938 decimal inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: C\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: 0.1102 inches (2.80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (ISO code P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron (ISO code K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.54 inches W x 0.44 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.44 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: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7860484\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51729034379570,"sku":"7860484","price":31.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9bd5a1ab9f2260cfc2c9d27c27ae4a5c.jpg?v=1788699099","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860484-turning-insert-tcmt21-51-um-4415","provider":"Voomi Supply","version":"1.0","type":"link"}