{"product_id":"value-collection-112074636-tpmr321-carbide-turning-insert","title":"Value Collection 112074636 TPMR321 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 112074636 is a solid carbide turning insert designated by ANSI code TPMR321 and ISO code TPMR160304, finished with a CVD-applied TiC and TiN dual coating under manufacturer grade TCN55. The insert features a 60-degree triangular shape with a positive side clearance and an 11-degree relief angle, making it suited for general turning operations on steel and stainless workpiece materials. The inscribed circle measures 0.375 inches, insert thickness is 0.125 inches, and the corner radius is 0.0157 inches (1\/64 inch). Machining shops and CNC operators install this insert into compatible TPMR-style toolholders using a clamp holding method.\u003c\/p\u003e\u003cp\u003eThis insert is designed for turning applications on primary workpiece material codes M and P, which correspond broadly to stainless steels and carbon and alloy steels. It carries material grades C5, C6, and C7, indicating suitability for finishing to semi-roughing cuts at moderate to higher cutting speeds. The chip breaker designation is R, which supports controlled chip formation during continuous or light interrupted cuts. It is sold individually but is subject to a minimum order quantity of 10 units per transaction.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD-applied TiC and TiN dual coating under grade TCN55 for wear and heat resistance\u003c\/li\u003e\n\u003cli\u003e60-degree triangular insert shape (shape code T) with positive side clearance for reduced cutting forces\u003c\/li\u003e\n\u003cli\u003e11-degree relief angle and TPMR insert style for free-cutting geometry\u003c\/li\u003e\n\u003cli\u003e0.0157-inch (1\/64 inch) corner radius for defined edge geometry on finishing passes\u003c\/li\u003e\n\u003cli\u003eR-style chip breaker for controlled chip evacuation\u003c\/li\u003e\n\u003cli\u003eCompatible with C5, C6, and C7 material grades covering a wide range of steel turning applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for TPMR321-style insert seats in TPMR clamp-style toolholders. ISO equivalent code is TPMR160304. Suitable for toolholders accepting a 3\/8-inch inscribed circle, 1\/8-inch thick triangular insert with positive clearance geometry.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eTurning inserts should be installed by a qualified machinist or CNC operator with the machine fully powered down and the spindle locked before changing tooling. Use the appropriate clamp screw and torque driver specified by the toolholder manufacturer to seat the insert securely without over-tightening. Inspect the insert pocket and clamping surfaces for chips or debris before seating a new insert. Always verify feed rate and depth-of-cut parameters against the grade and workpiece material before resuming cutting operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: TPMR321\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: TPMR160304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: T - Triangle, 60 degrees included angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TPMR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: TCN55\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: TiC and TiN (CVD process)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.125 inches (1\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0157 inches (1\/64 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 16.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp\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: P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Code\u003c\/strong\u003e: M, P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C6, C7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 112074636\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51712922386738,"sku":"112074636","price":253.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ef6d3c895d568f5fe8bb368aec29b344.jpg?v=1788489556","url":"https:\/\/voomisupply.com\/products\/value-collection-112074636-tpmr321-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}