{"product_id":"hertel-8852034-turning-insert-cngg4302nr-ht115cr-cermet","title":"Hertel 8852034 Turning Insert CNGG4302NR HT115CR Cermet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 8852034 is a cermet uncoated turning insert in the CNGG style, designed for precision metal cutting operations on CNC lathes and turning centers. This right-hand insert features an 80-degree diamond shape with a negative rake angle and a 0-degree relief angle, suited for finishing and semi-finishing passes on ferrous materials. The insert measures 0.4724 inches in length with a 0.5 inch inscribed circle and a 0.0039 inch corner radius, providing tight tolerances for close-tolerance turning work. The HT115CR grade cermet substrate delivers wear resistance and thermal stability without a coating, making it well suited for dry or light-coolant finishing cuts. Licensed machinists and CNC operators are the typical installers of this insert.\u003c\/p\u003e\u003cp\u003eThis insert is appropriate for use in light finishing and semi-finishing turning applications on steel and cast iron workpieces where dimensional accuracy is critical. The CNGG430.2R style designation indicates compatibility with standard CNGG-style toolholders and clamp-and-pin holding systems commonly used in production turning environments. It is particularly effective at moderate cutting speeds where the cermet substrate resists built-up edge and maintains a sharp, consistent cutting edge through extended runs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCermet uncoated substrate in manufacturer grade HT115CR for dry and light-coolant finishing\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape with negative rake for stable cutting geometry\u003c\/li\u003e\n\u003cli\u003e0.0039 inch corner radius for fine surface finish on close-tolerance workpieces\u003c\/li\u003e\n\u003cli\u003e0.5 inch inscribed circle and 0.4724 inch insert length for standard CNGG toolholder fitment\u003c\/li\u003e\n\u003cli\u003eClamp and pin holding method for secure seating in compatible toolholders\u003c\/li\u003e\n\u003cli\u003eG chip breaker style for controlled chip formation during finishing passes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard CNGG-style toolholders utilizing clamp and pin insert retention. Compatible with right-hand turning applications requiring CNGG430.2R inserts with a 0.203 inch hole diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Before changing inserts, ensure the machine spindle is fully stopped and the machine is placed in a safe, locked-out state per applicable shop safety procedures. Use the correct clamp and pin hardware specified for the toolholder to ensure proper seating; do not over-tighten clamping screws beyond the toolholder manufacturer's specified procedure. Inspect the insert pocket and locating pin for wear or debris before seating the new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNGG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle Code\u003c\/strong\u003e: CNGG430.2R\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\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 Hand\u003c\/strong\u003e: Right Hand\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\u003eChip Breaker\u003c\/strong\u003e: G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.4724 inches (12 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0039 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.203 inches\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: 0.13 pounds\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: 8852034\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51785188671794,"sku":"8852034","price":481.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e5ef4fa77f1e7e544415f3e660e97299.jpg?v=1789200633","url":"https:\/\/voomisupply.com\/products\/hertel-8852034-turning-insert-cngg4302nr-ht115cr-cermet","provider":"Voomi Supply","version":"1.0","type":"link"}