{"product_id":"seco-03276589-tcmt21-51-f1-tm2501-turning-insert","title":"Seco 03276589 TCMT21.51-F1 TM2501 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 03276589 is a solid carbide turning insert with ANSI designation TCMT21.51-F1 and ISO designation TCMT110204-F1, designed for precision finishing operations on CNC and manual lathes. Featuring a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr, this insert delivers high toughness on steel and moderate wear-resistance with toughness on stainless steel. The 60-degree triangle shape provides three cutting edges with a positive rake angle of 17 degrees and a 7-degree relief angle. The F1 chip breaker geometry is optimized for finishing cuts, producing consistent chip control at light depths of cut. Each insert ships individually but carries a minimum order quantity of 10 units.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for finishing applications in general machining environments where the primary workpiece material is stainless steel (ISO material group M) and the secondary workpiece material is steel (ISO material group P). It performs in back turning, boring, facing, and straight turning operations. The screw-on holding method makes it compatible with standard TCMT-style toolholders. Material grades M25, M30, and M35 cover a broad range of stainless and alloy steel workpieces, making this insert a versatile choice for production turning cells and job shops handling mixed material runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD Duratomic multilayer coating (TiCN, Al2O3, Cr) for extended tool life on stainless and steel\u003c\/li\u003e\n  \u003cli\u003eF1 chip breaker geometry optimized for finishing operations with positive rake\u003c\/li\u003e\n  \u003cli\u003eThree cutting edges per insert with 60-degree included angle and sharp cutting edge style\u003c\/li\u003e\n  \u003cli\u003ePositive side clearance (clearance code C, tolerance code M) for reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut of 0.3945 inches and 0.0157-inch corner radius for fine surface finish\u003c\/li\u003e\n  \u003cli\u003eScrew-on insert holding method compatible with standard TCMT toolholder blocks\u003c\/li\u003e\n  \u003cli\u003eComplies with both ANSI and ISO standards (ANSI TCMT21.51, ISO TCMT110204)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for standard TCMT-style screw-on toolholders accepting a 1\/4-inch inscribed circle triangle insert. Compatible with toolholders referencing ANSI insert code TCMT21.51 or ISO insert code TCMT110204.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key for the clamping screw and ensure the insert seats fully and evenly in the pocket before re-engaging the machine. Do not exceed the rated maximum depth of cut for this insert geometry, and verify toolholder compatibility with the ANSI or ISO size code before mounting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: TCMT21.51\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: TCMT110204\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: T - Triangle, 60-degree included angle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0157 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/32 inch (0.0937 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.4331 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.3945 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1142 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 17 degrees\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 Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, Cr (CVD Duratomic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: F1 (Finishing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel (ISO M)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel (ISO P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M25, M30, M35\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Use Applications\u003c\/strong\u003e: Back Turning, Boring, Facing, Turning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.54 x 1.5 x 0.39 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 03276589\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51559915815218,"sku":"03276589","price":195.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e1cee867e8dcec8716795a04d5874fbf_c00cfa94-cb2c-4fe0-8f37-5e81056a291a.jpg?v=1786444394","url":"https:\/\/voomisupply.com\/products\/seco-03276589-tcmt21-51-f1-tm2501-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}