{"product_id":"hertel-8851928-turning-insert-tcmt32-51bh-ht115cr-cermet","title":"Hertel 8851928 Turning Insert TCMT32.51BH HT115CR Cermet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 8851928 is a TCMT-style cermet turning insert designed for precision external turning operations on CNC and manual lathes. Grade HT115CR cermet provides a hard, wear-resistant cutting edge that performs well on steel, stainless, and cast iron at moderate to high cutting speeds. The insert is uncoated and features a positive rake angle of 5 degrees, reducing cutting forces and heat generation at the tool tip. With a 3\/8-inch inscribed circle and a 1\/64-inch corner radius, this insert suits medium-finish to finish-turning passes where tight tolerances and surface quality are priorities. Neutral hand orientation allows use in standard right-hand or left-hand holders depending on the tooling setup.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for finish and semi-finish turning on CNC turning centers and engine lathes in production and job-shop environments. The TCMT style with screw-on holding method secures the insert firmly in compatible TCMT insert pockets, minimizing vibration and insert movement during interrupted or continuous cuts. Typical applications include turning of mild steel, alloy steel, and stainless steel workpieces where surface finish and dimensional accuracy are critical. The positive rake geometry also helps reduce built-up edge when machining softer materials. Machinists and tooling specialists in metal-cutting operations install this insert as a direct replacement or initial tooling load in TCMT-compatible toolholders.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHT115CR cermet grade — uncoated, engineered for high-speed finish turning on steel and stainless\u003c\/li\u003e\n  \u003cli\u003ePositive rake angle (5 degrees) reduces cutting forces and minimizes heat at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eTCMT insert style with screw-on holding method for rigid, repeatable clamping\u003c\/li\u003e\n  \u003cli\u003e60-degree triangular insert shape provides three usable cutting edges per insert\u003c\/li\u003e\n  \u003cli\u003e1\/64-inch corner radius for tight-tolerance finish passes\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation — compatible with both right-hand and left-hand TCMT toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style cutting insert for TCMT-style insert pockets with a screw-on holding method. Insert style code is TCMT32.51; verify toolholder pocket matches this insert style, clearance code C, and tolerance code M before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the correct torque wrench and manufacturer-specified insert screws when clamping the insert into the pocket — do not overtighten with standard hex keys as this can crack cermet inserts. Inspect the insert pocket seat and clamping screw for wear or debris before installing 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: TCMT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle Code\u003c\/strong\u003e: TCMT32.51\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: HT115CR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Cermet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Uncoated\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: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 5 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0156 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 16 mm (0.6299 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 5\/32 inch (0.1563 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1730 inches\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: C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 8851928\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51729255170354,"sku":"8851928","price":244.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4ac5545d480b1172fa8b01799e3a9a52.jpg?v=1788702242","url":"https:\/\/voomisupply.com\/products\/hertel-8851928-turning-insert-tcmt32-51bh-ht115cr-cermet","provider":"Voomi Supply","version":"1.0","type":"link"}