{"product_id":"accupro-75474981-turning-insert-dcmt21-51-carbide-cvd","title":"Accupro 75474981 Turning Insert DCMT21.51 Carbide Cvd","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 75474981 is a DCMT-style carbide turning insert designed for precision lathe and turning center operations. Identified by ANSI code DCMT21.51 and ISO code DCMT070204, this insert features a 55-degree diamond (rhombic) shape with a positive side clearance and a 7-degree relief angle. The CVD coating and ACP35M grade deliver high wear resistance with sufficient toughness for demanding cuts. With a 0.40 mm (0.0157 inch) corner radius and a maximum depth of cut of 3.00 mm (0.1181 inches), it suits finishing to moderate stock-removal passes. Machinists and CNC operators install these inserts in compatible DCMT toolholders secured by a screw-lock holding method.\u003c\/p\u003e\u003cp\u003eThis insert is rated for steel (P), stainless steel (M), and special and super alloys (S) workpiece materials, covering a broad range of production turning applications. Residential and commercial machine shops, job shops, and production facilities running CNC lathes or manual turning centers will find this insert appropriate for general-purpose turning where controlled wear and consistent edge life are priorities. The WM+ chip breaker geometry supports reliable chip control across the rated material categories.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDCMT diamond (rhombic) insert shape with 55-degree included angle for versatile turning profiles\u003c\/li\u003e\n\u003cli\u003eCVD coating on ACP35M carbide grade balances wear resistance and toughness\u003c\/li\u003e\n\u003cli\u003eRated for steel (P), stainless steel (M), and special and super alloys (S) workpiece materials\u003c\/li\u003e\n\u003cli\u003ePositive side clearance reduces cutting forces and minimizes workpiece deflection\u003c\/li\u003e\n\u003cli\u003eWM+ chip breaker geometry promotes consistent chip evacuation\u003c\/li\u003e\n\u003cli\u003eScrew-lock holding method for secure, repeatable insert positioning\u003c\/li\u003e\n\u003cli\u003e2 cutting edges per insert maximize tooling value\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in DCMT-style screw-lock turning toolholders accepting ANSI size code 21.51 (ISO size code 070204) inserts with a 0.1102-inch hole diameter and a 0.2500-inch inscribed circle.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC operators. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key to secure the clamping screw to the toolholder manufacturer specification  -  do not over-torque. Inspect the toolholder seat and clamp for wear or debris before seating a new insert to ensure proper edge registration.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DCMT21.51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DCMT070204\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DCMT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55-Deg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: ACP35M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: WM+\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.40 mm (0.0157 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.2500 inches (6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 2.38 mm (0.0937 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1102 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 3.00 mm (0.1181 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 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\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P), Stainless Steel (M), Special and Super Alloys (S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 75474981\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51740590899506,"sku":"75474981","price":123.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/097a43a304bacf545c09bc559e1b4d1d.jpg?v=1788826054","url":"https:\/\/voomisupply.com\/products\/accupro-75474981-turning-insert-dcmt21-51-carbide-cvd","provider":"Voomi Supply","version":"1.0","type":"link"}