{"product_id":"sumitomo-12jt711-cermet-turning-insert-tpg321-t1500a","title":"Sumitomo 12JT711 Cermet Turning Insert TPG321 T1500A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 12JT711 is a TPG321-style cermet turning insert designed for precision metal cutting on CNC lathes and manual turning centers. Built to ANSI and ISO 13399 standards, it features a triangular insert shape with a 60-degree included angle, a 3\/8-inch inscribed circle, and a 1\/64-inch corner radius. The T1500A cermet grade delivers a balance of hardness and wear resistance suited to finishing and semi-finishing operations on steel workpieces. The insert carries a positive rake geometry and a P-clearance, G-tolerance classification, making it a consistent choice for achieving tight dimensional tolerances.\u003c\/p\u003e\u003cp\u003eThis insert is engineered primarily for steel cutting applications, corresponding to ISO material group P. It is well suited to light-to-medium turning passes where surface finish and dimensional accuracy are priorities. The uncoated cermet substrate performs at elevated cutting speeds with reduced built-up edge on ferrous materials. Licensed machinists and CNC operators working in job shops, production turning cells, and precision manufacturing environments will find this insert a direct fit for standard TPG-style toolholders that accept a 321 insert size.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTPG321 insert style with clamp-style holding method for secure seating in compatible toolholders\u003c\/li\u003e\n\u003cli\u003eT1500A cermet grade, uncoated, optimized for steel finishing and semi-finishing cuts\u003c\/li\u003e\n\u003cli\u003e60-degree triangular shape provides three usable cutting edges per insert\u003c\/li\u003e\n\u003cli\u003ePositive rake geometry reduces cutting forces and heat generation at the tool-workpiece interface\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and ISO 13399 standards for interchangeability and documentation\u003c\/li\u003e\n\u003cli\u003eISO equivalent code TPGN160304 for cross-reference with metric tooling systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement turning insert for standard TPG-style toolholders accepting a 321 insert size with a P-clearance, G-tolerance fit. ANSI code TPG321 and ISO code TPGN160304 apply for cross-reference.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert seating and clamping should be performed with the machine fully powered down and the spindle locked. Use the toolholder manufacturer's specified clamp screw torque procedure and inspect the insert pocket for chips or debris before seating the insert. Verify insert orientation and rake direction before resuming cuts. This work is typically performed by a CNC machinist or toolroom technician following standard shop safety practices.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TPG\u003c\/li\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 Shape\u003c\/strong\u003e: Triangle (60 degrees)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Cermet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: T1500A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated\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\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inches (0.0156 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\u003eInsert Length\u003c\/strong\u003e: 0.4331 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\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\u003eChip Breaker\u003c\/strong\u003e: None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (ISO Group P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO 13399\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 12JT711\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51732286865714,"sku":"12JT711","price":25.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f7048ed9ac4fedcec7386702271faff.jpg?v=1788741197","url":"https:\/\/voomisupply.com\/products\/sumitomo-12jt711-cermet-turning-insert-tpg321-t1500a","provider":"Voomi Supply","version":"1.0","type":"link"}