{"product_id":"sumitomo-16fsw33-pcbn-turning-insert-1-4-in-ic","title":"Sumitomo 16FSW33 Pcbn Turning Insert 1\/4 in Ic","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SUMITOMO 16FSW33 is a polycrystalline cubic boron nitride (PCBN) turning insert designed for high-performance metal cutting applications. This uncoated, triangular insert features a 1\/4 inch inscribed circle, a 1\/64 inch corner radius, and a positive rake geometry. Manufactured to the BN700 grade, it delivers the hardness and thermal resistance required when machining difficult materials at production speeds. The screw-holding method provides secure clamping during interrupted and continuous cuts. Licensed HVAC techs and machinists working in precision metalworking environments will find this insert suited for demanding turning operations on hard or abrasive workpiece materials.\u003c\/p\u003e\n\u003cp\u003eThe 16FSW33 is intended for turning cast iron and superalloy workpieces where conventional carbide tooling falls short. Its three cutting edges extend tool life per insert, reducing changeover frequency on production lathes and CNC turning centers. The 3NU-TCGA insert style and T-series designation align with standard toolholders designed for triangular inserts with a 7-degree relief angle. This insert is appropriate for both roughing and finishing passes on hard materials in industrial machining environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePCBN (BN700 grade) construction — engineered for hardened cast iron and superalloy turning\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish with positive rake for reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eTriangle insert shape with 60-degree included angle and 3 usable cutting edges\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch inscribed circle with 1\/64 inch corner radius for controlled surface finish\u003c\/li\u003e\n  \u003cli\u003eScrew-holding method (3NU-TCGA style) for rigid, repeatable insert seating\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and ISO 13399 standards; ISO code 3NU-TCGW110204\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in toolholders accepting 3NU-TCGA style triangular turning inserts with a screw-holding method. Primary workpiece materials are cast iron and superalloys per ISO material codes K and S.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or toolroom technician. Power down and fully stop the spindle before indexing or replacing inserts. Use the correct torque driver for the mounting screw to ensure proper clamping without cracking the PCBN substrate. Verify toolholder pocket cleanliness and seating surface condition before each insert change to maintain positional accuracy.\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: BN700\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.0938 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.11 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.015 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 3NU-TCGA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron; Superalloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: 3NU-TCGW110204\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI; ISO 13399\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: 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: SUMITOMO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 16FSW33\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51749387501874,"sku":"16FSW33","price":138.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6fdd61c1cc2342c5ee719e4fd8a4019a_886d7cc2-4bb0-49cd-99e5-17635f4ded68.jpg?v=1788905415","url":"https:\/\/voomisupply.com\/products\/sumitomo-16fsw33-pcbn-turning-insert-1-4-in-ic","provider":"Voomi Supply","version":"1.0","type":"link"}