{"product_id":"iscar-5502157-turning-insert-tpgh-321-l-ic20-carbide","title":"Iscar 5502157 Turning Insert Tpgh 321 L IC20 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 5502157 is a solid carbide, uncoated turning insert in the TPGH style, part of the Isoturn series. It features a 60-degree triangular shape with a positive rake angle and an 11-degree relief angle (Clearance Code P). The inscribed circle measures 3\/8 inches (0.3748 inches), and the corner radius is 1\/64 inches (0.0157 inches). At 16.5 mm (0.6496 inches) in length and 0.1248 inches thick, this is a left-hand insert designed for precision turning operations. It is held in place by a screw and is suited for CNC lathes and turning centers where consistent geometry and dimensional accuracy are required. Licensed machinists and CNC operators are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for use on ISO-compliant toolholders that accept the TPGH insert style with screw-clamping. It is well-suited for finish and semi-finish turning of non-ferrous metals, cast iron, and heat-resistant super alloys, corresponding to ISO workpiece material categories K, M, and N. The IC20 uncoated carbide grade (Material Grade C2\/C3) performs best in applications where sharp cutting edges and low cutting forces are critical. The H chip breaker geometry is optimized for light-to-medium depth cuts up to 4.0 mm (0.1570 inches).\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide uncoated construction (IC20 grade, Material Grade C2\/C3) for sharp, consistent edges\u003c\/li\u003e\n  \u003cli\u003e60-degree triangular insert shape (Insert Shape Code T) with positive rake for reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eLeft-hand configuration for specific toolholder orientation requirements\u003c\/li\u003e\n  \u003cli\u003eH chip breaker geometry optimized for light-to-medium finish turning passes\u003c\/li\u003e\n  \u003cli\u003eScrew-clamping retention method for secure, repeatable seating in compatible holders\u003c\/li\u003e\n  \u003cli\u003eCompliant with ISO 13399 insert identification standards for toolholder compatibility verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for ISO 13399-compliant TPGH-style screw-clamp toolholders accepting a 3\/8-inch inscribed circle, left-hand triangular insert. Suitable for workpiece material categories K, M, and N per ISO classification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC technician with the machine in a full stop, lockout\/tagout condition before changing inserts. Use the correct torque wrench and manufacturer-specified clamping screw to seat the insert fully in the pocket — do not overtighten, as this can fracture the carbide. Verify insert orientation and hand designation against the toolholder specification before resuming operation. Inspect the insert pocket and clamping surfaces for chips or debris before seating a new insert.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TPGH\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 Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: IC20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C3\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: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3748 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inches (0.0157 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 16.50 mm (0.6496 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1248 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1693 inches (4.30 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 4.00 mm (0.1570 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\u003eChip Breaker\u003c\/strong\u003e: H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\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\u003eSeries\u003c\/strong\u003e: Isoturn\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Categories\u003c\/strong\u003e: K, M, N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ISO 13399\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 321\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ISCAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5502157\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51746404139314,"sku":"5502157","price":323.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a0161659ef2cee0e9db45f86d0de7346.jpg?v=1788869658","url":"https:\/\/voomisupply.com\/products\/iscar-5502157-turning-insert-tpgh-321-l-ic20-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}