{"product_id":"sumitomo-16jrcub-pcbn-turning-insert-bn2000-diamond","title":"Sumitomo 16JRCUB Pcbn Turning Insert BN2000 Diamond","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 16JRCUB is a polycrystalline cubic boron nitride (PCBN) turning insert designed for high-speed, hard-part machining applications. Manufactured to ANSI code 2NUVNGA332 and ISO code 2NU-VNGA160408, this uncoated insert features a 35-degree diamond shape (V-style) with a neutral hand orientation and a negative rake geometry. The inscribed circle measures 0.375 inches, the corner radius is 0.03125 inches, and the insert thickness is 0.1875 inches. With two cutting edges per insert, the 16JRCUB is suited for CNC turning operations where tool life and dimensional accuracy on hardened or abrasive workpieces are critical. It is held via clamp and pin mounting.\u003c\/p\u003e\u003cp\u003eThis insert is intended for turning cast iron, steel, and superalloy workpieces, corresponding to ISO material codes H, K, and S. It performs well in finishing and semi-finishing passes where conventional carbide tooling experiences rapid wear. The BN2000 manufacturer grade, combined with the uncoated PCBN substrate, delivers thermal stability and edge retention at elevated cutting speeds typical of hard-turning operations. The VNGA series geometry is a common fit on CNC lathes and turning centers configured for precision hard-part work in aerospace, automotive, and general metalworking environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePCBN insert material for superior hardness and wear resistance in hard-part turning\u003c\/li\u003e\n\u003cli\u003eUncoated BN2000 grade optimized for cast iron, steel, and superalloy workpieces\u003c\/li\u003e\n\u003cli\u003e35-degree diamond insert shape (V) with negative rake for stable cutting geometry\u003c\/li\u003e\n\u003cli\u003e2 cutting edges per insert for extended tool utilization\u003c\/li\u003e\n\u003cli\u003eClamp and pin holding method for secure, repeatable seating in compatible toolholders\u003c\/li\u003e\n\u003cli\u003eCompliant with ANSI and ISO 13399 standards for insert interchangeability documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style VNGA-series PCBN turning insert for use in toolholders accepting a 2NUVNGA332 style insert with clamp and pin retention. Specific toolholder compatibility should be verified against the 2NU-VNGA insert pocket specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician with the machine fully powered down and in a locked-out state before any insert change. Seat the insert fully into the pocket and torque the clamp or pin fastener per the toolholder manufacturer specification. Inspect the insert seat and clamp for chips or debris before securing. Handle PCBN inserts with care, as the cutting edge is brittle and susceptible to chipping from impact or improper seating.\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: BN2000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Code\u003c\/strong\u003e: 2NUVNGA332\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: 2NU-VNGA160408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (V), 35-degree included angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.375 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\u003eCorner Radius\u003c\/strong\u003e: 0.03125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.0787 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.150 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\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\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel, Superalloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO 13399\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.2 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: 16JRCUB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51730452316466,"sku":"16JRCUB","price":99.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3e702f48d9cf43478d39ae510f51f9de_53a7d3af-481c-4c36-8046-4f5a7634d123.jpg?v=1788717700","url":"https:\/\/voomisupply.com\/products\/sumitomo-16jrcub-pcbn-turning-insert-bn2000-diamond","provider":"Voomi Supply","version":"1.0","type":"link"}