{"product_id":"sumitomo-19rjw0h-turning-insert-ccmt21-51enk-ac820p-carbide","title":"Sumitomo 19RJW0H Turning Insert CCMT21.51ENK AC820P Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 19RJW0H is a solid carbide coated turning insert designed for precision finishing operations on CNC and manual lathes. Conforming to ANSI insert code CCMT21.51 and ISO code CCMT060204, this insert features an 80-degree diamond (rhombic) shape with a positive rake and positive side clearance. The AC820P grade is applied via CVD coating, targeting high wear-resistance with moderate toughness across steel and cast iron workpiece materials. The screw-holding method provides secure clamping during high-speed finishing passes. It suits machinists and tooling specialists working in production turning environments where consistent surface finish and dimensional accuracy are required.\u003c\/p\u003e\u003cp\u003eThis insert is suited for finishing cuts on steel (ISO P) and cast iron (ISO K) workpieces in both production and job-shop turning applications. The ENK chip breaker geometry is optimized for light depths of cut and tight tolerances typical of finishing operations. The neutral hand orientation makes it compatible with standard CCMT-style toolholders. It is commonly specified for use with CNC lathes in aerospace, automotive, and general manufacturing settings where close tolerances and surface quality are critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAC820P CVD-coated carbide grade delivering high wear-resistance for steel and cast iron applications\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape (CCMT) with positive rake and positive side clearance for reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eENK chip breaker geometry engineered for finishing operations and fine chip control\u003c\/li\u003e\n\u003cli\u003e1\/64 inch (0.0156 inch) corner radius for sharp, accurate finish passes\u003c\/li\u003e\n\u003cli\u003eNeutral hand insert compatible with standard CCMT screw-clamp toolholders\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI and ISO 13399 standards for broad toolholder interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for CCMT21.51 (ISO CCMT060204) style turning insert seats using screw-clamp holding. ISO code CCMT060204N-SK. Compatible toolholder designations follow ANSI CCMT21.51 and ISO CCMT060204 specifications. Suitable for primary workpiece material codes P (steel) and K (cast iron).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked before changing inserts. Use the appropriate Torx or hex key to secure the clamping screw to toolholder specification — do not overtighten, as carbide inserts are brittle and can crack under excessive clamping force. Inspect the toolholder pocket for wear or debris before seating the insert. Verify correct insert orientation and chip breaker direction before resuming machine operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CCMT21.51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CCMT060204\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code (Full)\u003c\/strong\u003e: CCMT060204N-SK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: AC820P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5A, C6, C7, C8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated (CVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: ENK (Finishing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\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\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0156 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/4 inch (0.250 inch \/ 6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.252 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/32 inch (0.0937 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.110 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P), Cast Iron (K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO 13399\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.075 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: SUMITOMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 19RJW0H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51730312954162,"sku":"19RJW0H","price":145.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0299c73cbf9dbceb44d9da5abc09f91b.jpg?v=1788715164","url":"https:\/\/voomisupply.com\/products\/sumitomo-19rjw0h-turning-insert-ccmt21-51enk-ac820p-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}