{"product_id":"sumitomo-16rkweg-pcbn-turning-insert-bn7500-80-degree","title":"Sumitomo 16RKWEG Pcbn Turning Insert BN7500 80 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 16RKWEG is a PCBN (polycrystalline cubic boron nitride) turning insert designed for high-wear-resistance applications in precision machining. Conforming to ANSI insert code CNGA432 and ISO insert code CNGA120408, this insert features an 80-degree diamond (rhombic) shape with a negative rake and negative side clearance. The inscribed circle measures 0.5 inches, the corner radius is 0.03125 inches (1\/32 inch), and the insert thickness is 0.1875 inches (3\/16 inch). Manufactured in the BN7500 grade, it delivers consistent performance when turning hardened materials and cast iron. Installation is typically performed by CNC machinists and tool-and-die professionals using compatible CNGA-style toolholders with clamp and pin holding methods.\u003c\/p\u003e\u003cp\u003eThis insert is engineered for turning operations on powdered metal, cast iron (ISO material group K), and hardened materials (ISO material group H) where high wear resistance is the primary requirement. The WG chip breaker geometry suits continuous and interrupted cuts in these demanding workpiece materials. The uncoated bright finish is suited to applications where coating adhesion to the workpiece is a concern or where maximum edge sharpness is required. With two cutting edges per insert, it offers an economical service life in production turning environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePCBN insert material for high-wear-resistance turning of hardened and cast iron workpieces\u003c\/li\u003e\n\u003cli\u003eBN7500 grade optimized for ISO material groups K (cast iron) and H (hardened materials)\u003c\/li\u003e\n\u003cli\u003e80-degree diamond (rhombic) insert shape with negative rake and negative side clearance\u003c\/li\u003e\n\u003cli\u003eWG chip breaker geometry for effective chip control in hard-turning applications\u003c\/li\u003e\n\u003cli\u003eTwo cutting edges per insert for extended tool life per unit\u003c\/li\u003e\n\u003cli\u003eComplies with ANSI and ISO 13399 standards for interchangeability and tool data integration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for CNGA432 or CNGA120408 style insert seats. Compatible with CNGA-style toolholders that accept clamp and pin holding methods. Confirm toolholder pocket geometry and clamping system before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified CNC machinists or tooling specialists familiar with indexable insert toolholders. Power down and lock out all machine spindles before handling or indexing cutting inserts. Inspect the toolholder pocket for wear or contamination before seating the insert. Handle PCBN inserts with care, as the cutting edges are brittle and susceptible to chipping if dropped or impacted.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNGA432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNGA120408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: PCBN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: BN7500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80 Degree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.03125 inches (1\/32 inch)\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\u003eInsert Length\u003c\/strong\u003e: 0.0945 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: WG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: Uncoated\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: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Code\u003c\/strong\u003e: K and H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: 2NU-CNGA120408WG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI and ISO 13399\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: SUMITOMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 16RKWEG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51740101542194,"sku":"16RKWEG","price":100.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4a77163a3ae701d0b97f0c973a6c95bf.jpg?v=1788822297","url":"https:\/\/voomisupply.com\/products\/sumitomo-16rkweg-pcbn-turning-insert-bn7500-80-degree","provider":"Voomi Supply","version":"1.0","type":"link"}