{"product_id":"hertel-8852074-ceramic-turning-insert-cnga643t00825","title":"Hertel 8852074 Ceramic Turning Insert CNGA643T00825","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 8852074 is a ceramic uncoated turning insert designed for precision metal cutting operations on CNC lathes and turning centers. Manufactured to the CNGA643T00825 style designation with an HT601CA ceramic grade, this insert features an 80-degree diamond shape with a negative rake angle and neutral hand orientation. The inscribed circle measures 0.75 inches and the insert length is 0.748 inches. With a corner radius of 0.0469 inches (3\/64 inch) and a relief angle of zero degrees, this insert is suited for high-speed finishing and semi-finishing passes on hard materials where ceramic tooling provides a thermal and wear advantage over carbide.\u003c\/p\u003e\u003cp\u003eThis insert is used in external turning, facing, and profiling applications in production machining environments. It is appropriate for machining hardened steels, cast irons, and high-temperature alloys where ceramic cutting materials outperform conventional carbide at elevated surface speeds. The CNGA insert style is a standard configuration commonly found in both high-volume production shops and precision job shops. The neutral hand allows use in either left-hand or right-hand toolholder setups depending on the application. The HT601CA grade is a ceramic formulation suited to dry or minimal-coolant cutting conditions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCeramic uncoated insert grade HT601CA for high-speed dry or minimal-coolant machining\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape (Shape Code C) for versatile turning and profiling geometry\u003c\/li\u003e\n\u003cli\u003eNegative rake angle with CNGA style for strong cutting edge and chipping resistance\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.0469 inches (3\/64 inch) for controlled surface finish\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation compatible with left-hand and right-hand toolholders\u003c\/li\u003e\n\u003cli\u003eClamp and pin insert holding method for secure, repeatable seating in standard CNGA toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard CNGA-style turning insert for use with compatible CNGA toolholders accepting a 0.75-inch inscribed circle, 0.25-inch thick diamond insert with clamp and pin retention.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and indexing of turning inserts should be performed by a qualified machinist or tooling technician with the machine spindle fully stopped and the machine locked out per applicable safety procedures. Use the correct torque driver for the clamping screw to ensure proper seating without cracking the ceramic insert body. Ceramic inserts are brittle and should not be subjected to interrupted cuts, heavy shock loads, or coolant thermal shock unless the grade is rated for those conditions. Inspect the toolholder pocket and locating pin for wear or debris before seating each new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNGA643T00825\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: HT601CA\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: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (80 degrees)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: C\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: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.75 inches (3\/4 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.748 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0469 inches (3\/64 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.24 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 8852074\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51753867772210,"sku":"8852074","price":527.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c0130eeacbd3cd1945aa0c549eae717b.jpg?v=1788941649","url":"https:\/\/voomisupply.com\/products\/hertel-8852074-ceramic-turning-insert-cnga643t00825","provider":"Voomi Supply","version":"1.0","type":"link"}