{"product_id":"sumitomo-12rj711-tpg321-ac820p-carbide-turning-insert","title":"Sumitomo 12RJ711 TPG321 AC820P Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 12RJ711 is a solid carbide turning insert designed for precision single-point turning operations on CNC and manual lathes. Conforming to ANSI code TPG321 and ISO code TPGN160304, it features a 60-degree triangular insert shape with a positive rake geometry and an 11-degree relief angle. The AC820P manufacturer grade indicates a CVD-coated carbide substrate engineered for wear resistance and thermal stability at elevated cutting speeds. With a 3\/8-inch inscribed circle, a 1\/64-inch corner radius, and an insert thickness of 1\/8 inch, this insert is suited for moderate to finishing-depth passes. Machining professionals select this insert for consistent edge life when turning steel and stainless workpieces.\u003c\/p\u003e\u003cp\u003eThe 12RJ711 is intended for turning steel and stainless steel workpieces, corresponding to primary workpiece material codes M and P. It is clamp-held in standard TPG-style toolholders with a clearance code P and tolerance code G. Typical applications include finishing and semi-finishing passes on CNC turning centers and turret lathes in production and job-shop environments. The TP series geometry suits scenarios where controlled chip formation and predictable edge life are priorities on ferrous materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD-coated AC820P grade solid carbide for thermal stability and wear resistance on steel\u003c\/li\u003e\n\u003cli\u003e60-degree triangular shape with positive rake for reduced cutting forces\u003c\/li\u003e\n\u003cli\u003e11-degree relief angle (clearance code P) for clearance in standard TPG toolholders\u003c\/li\u003e\n\u003cli\u003e1\/64-inch corner radius for semi-finishing and finishing cut profiles\u003c\/li\u003e\n\u003cli\u003eCompliant with ANSI and ISO 13399 standards for toolholder interchangeability\u003c\/li\u003e\n\u003cli\u003eSingle cutting edge per insert for predictable performance tracking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for standard TPG321-style clamp-held toolholders conforming to ANSI TPG and ISO TPGN insert seat specifications. Compatible material grades include C5A, C6, C7, and C8 classifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician with the machine in a fully stopped and locked-out state before any insert change. Seat the insert squarely against the pocket locating surfaces before tightening the clamp to avoid micro-fracture at the cutting edge. Inspect the toolholder pocket for wear or debris before seating a new insert. Follow the toolholder manufacturer torque and clamping specifications for the specific clamp style in use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Code\u003c\/strong\u003e: TPG321\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: TPGN160304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle (60 degrees)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: AC820P\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\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 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\u003eInsert Thickness\u003c\/strong\u003e: 1\/8 inches (0.1250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inches (0.0156 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: M, P (Stainless Steel, Steel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel\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\u003eSeries\u003c\/strong\u003e: TP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO 13399\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: 12RJ711\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51737821446450,"sku":"12RJ711","price":237.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b7848a11644c72a5640cff635ba9a08.jpg?v=1788793954","url":"https:\/\/voomisupply.com\/products\/sumitomo-12rj711-tpg321-ac820p-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}