{"product_id":"tungaloy-6749437-pcbn-turning-insert-dnga432-bxa20","title":"Tungaloy 6749437 Pcbn Turning Insert DNGA432 BXA20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TUNGALOY 6749437 is a polycrystalline cubic boron nitride (PCBN) turning insert designed for high-speed machining of hardened ferrous materials. It carries the BXA20 manufacturer grade, a multilayer PVD TiAlN coating, and a wiper edge geometry that improves surface finish at higher feed rates. The insert sits in the DNGA style with a 55-degree diamond shape, neutral hand, and a 0.0315-inch corner radius. It is intended for use by CNC machinists and toolroom technicians who need consistent tool life and dimensional accuracy when cutting hardened steels and hard-to-machine alloys in turning, facing, boring, back turning, and back boring operations.\u003c\/p\u003e\u003cp\u003eThis insert is rated for primary workpiece material code H, covering hardened materials where high wear resistance is the critical requirement. The wiper edge configuration allows higher feed rates without sacrificing surface finish, making it suitable for finish and semi-finish turning passes on hardened steel components in aerospace, automotive, and die-mold applications. The multi-tipped, multi-use design supports turning, facing, boring, back turning, and back boring on CNC lathes and turning centers. It conforms to ANSI and ISO standards, with an ANSI size code of 432 and an ISO size code of 150408.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePCBN insert material with medium grain grade for hardened material machining\u003c\/li\u003e\n\u003cli\u003eMultilayer PVD TiAlN coating for extended wear resistance at elevated cutting temperatures\u003c\/li\u003e\n\u003cli\u003eWiper edge geometry supports improved surface finish at increased feed rates\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation fits standard DNGA-style insert pockets\u003c\/li\u003e\n\u003cli\u003eTwo cutting edges per insert with clamp and pin holding method\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI and ISO standards; ANSI size code 432, ISO size code 150408\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit insert for toolholders accepting DNGA style inserts with an ANSI size code of 432. The ISO equivalent designation is 2QP-DNGA150408WJ BXA20. Consult toolholder documentation to confirm pocket geometry and clamping method compatibility before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of indexable turning inserts should be performed by a qualified machinist or CNC technician with the machine spindle fully stopped and all power isolated. Use the appropriate torque wrench and insert-clamping hardware specified by the toolholder manufacturer; do not substitute fasteners. Inspect the insert pocket seat for chips or debris before seating the insert, as contamination can cause insert rocking and premature edge failure. Follow shop safety procedures and applicable ANSI B11 machine tool safety standards when changing inserts on live tooling or turning centers.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DNGA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: WJ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Wiper Edge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0315 inches (1\/32 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\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 (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2030 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.0197 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Length\u003c\/strong\u003e: 0.0830 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\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees (Negative Rake)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\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\u003eCoating\u003c\/strong\u003e: TiAlN Multilayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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: Hardened Materials (H) - High Wear Resistance\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\u003eANSI Size Code\u003c\/strong\u003e: 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Size Code\u003c\/strong\u003e: 150408\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: 0.05 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: 6749437\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TUNGALOY","offers":[{"title":"Default Title","offer_id":52053117272370,"sku":"6749437","price":114.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/810f3b4e176b64ef2c87335bf3d1f0a3.jpg?v=1790036021","url":"https:\/\/voomisupply.com\/products\/tungaloy-6749437-pcbn-turning-insert-dnga432-bxa20","provider":"Voomi Supply","version":"1.0","type":"link"}