{"product_id":"hertel-8850567-turning-insert-tpg221t00320-hp610ca-ceramic","title":"Hertel 8850567 Turning Insert TPG221T00320 HP610CA Ceramic","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 8850567 is a TPG-style ceramic turning insert designed for high-speed, high-temperature machining applications on CNC and manual lathes. Manufactured in the HP610CA ceramic grade with a PVD-applied TiN coating, this insert delivers wear resistance and thermal stability when cutting hardened steels, cast irons, and similar difficult materials. The neutral hand orientation suits a wide range of turning and facing operations. At 0.433 inches in length with a 1\/4-inch inscribed circle and a 1\/64-inch corner radius, it fits standard TPG toolholders and provides consistent, repeatable edge geometry across the cutting cycle. Installation is performed by qualified machinists and toolroom technicians.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for turning operations on CNC turning centers and conventional lathes where ceramic-grade tooling is required. The 60-degree triangular shape provides three usable cutting edges per insert, making it a practical choice for high-production environments cutting hardened or abrasive workpiece materials. The positive rake geometry reduces cutting forces, and the clamp-style holding method ensures rigid seating in compatible TPG toolholders. Typical applications include finish and semi-finish turning of hardened ferrous materials where carbide tooling reaches its thermal limits.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHP610CA ceramic grade with PVD TiN coating for elevated wear and thermal resistance\u003c\/li\u003e\n  \u003cli\u003e60-degree triangular insert shape with three usable cutting edges per insert\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation for versatile turning and facing setups\u003c\/li\u003e\n  \u003cli\u003e1\/64-inch corner radius for controlled surface finish in finish and semi-finish passes\u003c\/li\u003e\n  \u003cli\u003ePositive rake geometry reduces cutting forces on the workpiece and spindle\u003c\/li\u003e\n  \u003cli\u003eClamp-style holding method provides rigid, repeatable seating in TPG toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard TPG-style clamp toolholders accepting a 1\/4-inch inscribed circle, 1\/8-inch thick triangular insert with a TPG221 insert size code and P clearance, G tolerance designation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSeating and indexing of turning inserts should be performed by a qualified machinist or toolroom technician with the machine powered down and the spindle locked. Inspect the toolholder pocket and clamping screw for debris or damage before seating the insert. Ceramic inserts are brittle and should not be used for interrupted cuts or applications with heavy vibration unless the grade is rated for such conditions. Follow the toolholder manufacturer's clamping torque specifications and verify insert seating before resuming cutting operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TPG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle Code\u003c\/strong\u003e: TPG221-T00320\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: HP610CA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Ceramic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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\u003eChip Breaker\u003c\/strong\u003e: None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.433 inches\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: 0.0156 inches (1\/64 inch)\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\u003eHolding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 221\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: 8850567\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51748683841842,"sku":"8850567","price":330.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/543ddee30c541c1a21e40ac476e31176.jpg?v=1788896674","url":"https:\/\/voomisupply.com\/products\/hertel-8850567-turning-insert-tpg221t00320-hp610ca-ceramic","provider":"Voomi Supply","version":"1.0","type":"link"}