{"product_id":"tungaloy-6817943-pcbn-turning-insert-55-deg-diamond-bx330","title":"Tungaloy 6817943 Pcbn Turning Insert 55 Deg Diamond BX330","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TUNGALOY 6817943 is a polycrystalline cubic boron nitride (PCBN) turning insert designed for high-precision machining of hardened materials. Carrying the ISO designation DCMW070204 and manufactured to ANSI and ISO standards, this insert features a 55-degree diamond (rhombic) shape with a positive rake angle and positive side clearance. It is uncoated, fine-grain grade BX330, engineered for high wear resistance with a balance of toughness. The 1\/4-inch inscribed circle and 1\/64-inch corner radius make it well-suited for finishing operations requiring tight tolerances and consistent surface finish. Two cutting edges are available per insert, and the cutting edge is honed for clean entry into hardened workpieces.\u003c\/p\u003e\u003cp\u003eThis insert is intended for finishing passes on hard materials, including hardened steels and similar ferrous workpiece materials classified under ISO material group H. Typical applications include turning, facing, boring, back turning, and back boring on CNC lathes and turning centers in both production and job-shop environments. It belongs to the 2QP-DCM\/GW series and is compatible with screw-clamping toolholders designed for DCMW-style inserts. Maximum depth of cut is 0.50 mm (0.0197 inches), confirming its role as a finishing insert rather than a roughing tool.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePCBN (polycrystalline cubic boron nitride) insert material for hardened-material machining\u003c\/li\u003e\n\u003cli\u003eBX330 grade: fine-grain, high wear resistance with moderate toughness for ISO H workpiece materials\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape with positive rake and 7-degree relief angle\u003c\/li\u003e\n\u003cli\u003eHoned cutting edge for consistent finish quality at low depths of cut\u003c\/li\u003e\n\u003cli\u003e2 cutting edges per insert; neutral hand for flexible toolholder setup\u003c\/li\u003e\n\u003cli\u003eFlat-top chip breaker geometry optimized for finishing operations\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and ISO insert standards; ISO code DCMW070204\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in DCMW-style screw-clamping toolholders compatible with the 2QP-DCM\/GW insert series. Verify toolholder pocket geometry and seating before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before seating or replacing inserts. Use the correct torque wrench and manufacturer-specified clamping screw to secure the insert in the pocket  -  do not overtighten. Inspect the insert seat for chips or contamination before clamping, as debris under the insert will affect runout and edge life.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DCMW070204\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DCMW21.51\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Polycrystalline Cubic Boron Nitride (PCBN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: BX330\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Fine Grain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/4 inch (0.2500 inches \/ 6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0157 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 2.50 mm (0.6140 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/32 inch (0.0938 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1100 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.50 mm (0.0197 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Flat Top\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker Operation\u003c\/strong\u003e: Finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material (ISO Code H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2QP-DCM\/GW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring, Back Turning, Back Boring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: TUNGALOY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6817943\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TUNGALOY","offers":[{"title":"Default Title","offer_id":51995842969906,"sku":"6817943","price":100.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bacaa4e9d9df88e7e21845678fb74ef6.jpg?v=1789992958","url":"https:\/\/voomisupply.com\/products\/tungaloy-6817943-pcbn-turning-insert-55-deg-diamond-bx330","provider":"Voomi Supply","version":"1.0","type":"link"}