{"product_id":"tungaloy-6818115-pcbn-turning-insert-4qp-dnga432-bxc50","title":"Tungaloy 6818115 Pcbn Turning Insert 4QP-DNGA432 BXC50","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TUNGALOY 6818115 is a Polycrystalline Cubic Boron Nitride (PCBN) turning insert in the 4QP-DNGA432 series, grade BXC50, designed for high-performance machining of hard materials. The insert features a 55-degree diamond shape with a neutral hand, negative rake angle, and a honed cutting edge for consistent performance on hardened steels, cast irons, and similar difficult-to-machine workpieces. With a TiN PVD coating and coarse-grain PCBN substrate, it delivers wear resistance and thermal stability at elevated cutting speeds. This insert is installed and managed by CNC machinists and tool crib technicians in production turning environments.\u003c\/p\u003e\n\u003cp\u003eThe 6818115 is suited for turning, facing, boring, back turning, and back boring operations on hard materials (ISO material group H). Its 4-cutting-edge configuration and multi-tipped design maximize usable tool life per insert, making it a practical choice for high-volume production cells running hardened components. The flat-top chip breaker geometry and honed edge prep support stable, predictable cuts in interrupted and continuous hard-turning applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePCBN insert grade BXC50 with coarse-grain substrate for hard material (ISO group H) machining\u003c\/li\u003e\n  \u003cli\u003eTiN PVD coating for enhanced surface wear resistance\u003c\/li\u003e\n  \u003cli\u003e55-degree diamond insert shape (DNGA style) with 4 cutting edges for extended tool life\u003c\/li\u003e\n  \u003cli\u003e0.0315 inch corner radius for controlled surface finish on tight-tolerance parts\u003c\/li\u003e\n  \u003cli\u003eHoned cutting edge and flat-top chip breaker for stable chip control\u003c\/li\u003e\n  \u003cli\u003eMulti-use capability: turning, facing, boring, back turning, and back boring\u003c\/li\u003e\n  \u003cli\u003eHeld by clamp and pin for rigid, repeatable seating in compatible toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in DNGA-style toolholders compatible with the 4QP-DNGA432 insert size code (size code 432). Conforms to ANSI and ISO standards for insert geometry and tolerancing (tolerance code G, clearance code N).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert seating and clamping should be performed by a qualified CNC machinist or toolroom technician. Ensure the toolholder pocket and clamp pin are clean and free of chips before seating the insert. Verify the clamp and pin holding method is properly torqued per the toolholder manufacturer specifications. Inspect the cutting edge under magnification before use to confirm the honed edge is intact and undamaged.\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: BXC50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Coarse Grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DNGA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: 4QP-DNGA432\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 432\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 1.2200 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\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0315 inches\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\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\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\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\u003eCoating\u003c\/strong\u003e: TiN\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: 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\u003eWiper Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\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: 6818115\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TUNGALOY","offers":[{"title":"Default Title","offer_id":51987454132530,"sku":"6818115","price":157.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/136b108926977b72c8b137bf0f5dbc30.jpg?v=1789986849","url":"https:\/\/voomisupply.com\/products\/tungaloy-6818115-pcbn-turning-insert-4qp-dnga432-bxc50","provider":"Voomi Supply","version":"1.0","type":"link"}