{"product_id":"tungaloy-6743685-pcbn-turning-insert-dnga-432-bxa20","title":"Tungaloy 6743685 Pcbn Turning Insert Dnga 432 BXA20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TUNGALOY 6743685 is a Polycrystalline Cubic Boron Nitride (PCBN) turning insert in the DNGA 432 geometry, manufactured under the 2QP-DNGA series (TurnLine). It carries the BXA20 grade with a multilayer TiAlN PVD coating and a medium-grain PCBN substrate. Designed for negative-rake, flat-top chip-breaker operation, this multi-tipped insert delivers two cutting edges per insert. The 55-degree diamond shape, 0.5000-inch inscribed circle, and 0.0315-inch corner radius make it well-suited to interrupted and continuous cuts on hard, abrasive workpiece materials where carbide tooling reaches its limits. A licensed machinist or CNC programmer typically specifies and installs this insert.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for hard-material turning applications including hardened steels, hard cast iron, and similarly demanding workpieces classified under ISO workpiece material code H. It supports turning, facing, boring, back turning, and back boring operations. The 2QP-DNGA series follows ANSI and ISO insert standards, making it compatible with standard DNGA 432 toolholders that accept a clamp-and-pin holding method. Maximum recommended depth of cut is 0.50 mm (0.0197 inches), positioning this insert for finishing and semi-finishing passes rather than heavy roughing.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePCBN insert grade BXA20 with multilayer TiAlN PVD coating for extended tool life on hard materials\u003c\/li\u003e\n  \u003cli\u003eMedium-grain PCBN substrate balances edge toughness and wear resistance\u003c\/li\u003e\n  \u003cli\u003e55-degree diamond insert shape (code D) with negative rake and honed cutting edge for controlled chip formation\u003c\/li\u003e\n  \u003cli\u003eTwo usable cutting edges per insert reduce per-edge tooling cost\u003c\/li\u003e\n  \u003cli\u003eFlat-top chip breaker geometry supports finishing and semi-finishing passes up to 0.50 mm depth of cut\u003c\/li\u003e\n  \u003cli\u003eClamp and pin holding method compatible with standard DNGA toolholder pockets\u003c\/li\u003e\n  \u003cli\u003eMulti-use capable: turning, facing, boring, back turning, and back boring in a single insert style\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for DNGA 432 insert seats that accept a clamp-and-pin holding method; conforms to ANSI and ISO DNGA 432 standards for direct interchange in compatible toolholders.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePCBN inserts are installed by a machinist or tooling technician on a CNC lathe or machining center; power down the spindle and engage the machine lockout before indexing or replacing inserts. Seat the insert fully into the pocket and verify clamp and pin engagement before resuming cuts. Avoid interrupted cuts beyond the insert's rated maximum depth of cut, and do not use PCBN inserts on low-hardness workpieces, as they require hard, abrasive materials to perform as intended.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\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: BXA20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Medium Grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DNGA 432\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 55 degrees (Code D)\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\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 1.2200 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (4.76 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0315 inches (0.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Length\u003c\/strong\u003e: 0.0830 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.0197 inches (0.50 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2030 inches (5.16 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN Multilayer PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Flat Top\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material (ISO Code H)\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\u003eSeries\u003c\/strong\u003e: 2QP-DNGA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: TUNGALOY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6743685\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TUNGALOY","offers":[{"title":"Default Title","offer_id":52064545341746,"sku":"6743685","price":97.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8d808538d26ff6ed1fb556cc11d5dd30.jpg?v=1790044198","url":"https:\/\/voomisupply.com\/products\/tungaloy-6743685-pcbn-turning-insert-dnga-432-bxa20","provider":"Voomi Supply","version":"1.0","type":"link"}