{"product_id":"osg-650032711-screw-machine-drill-bit-21-64-solid-carbide","title":"Osg 650032711 Screw Machine Drill Bit 21\/64 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 650032711 is a screw machine length drill bit designed for high-performance drilling in demanding metalworking applications. Built from solid carbide with a coated finish, it measures 21\/64 inch (0.3281 inches) in diameter and delivers exceptional rigidity and wear resistance compared to high-speed steel alternatives. The 140-degree split point reduces walking and improves penetration on hard materials. A right-hand, two-flute spiral design paired with R-thinned web geometry ensures efficient chip evacuation and reduced thrust. Coolant-through capability supports high-speed production environments. Licensed HVAC techs and trade professionals in metal fabrication, MRO, and production machining rely on this bit for consistent, repeatable results.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for drilling steel, alloy steel, cast iron, titanium, and titanium alloys in production and job-shop settings. The screw machine length (stub) format provides added stiffness over jobber-length bits, making it well-suited for CNC machining centers, drill presses, and automatic screw machines where shorter overhang reduces deflection. The 3xD flute-to-diameter ratio supports chip clearance in moderate-depth holes without sacrificing rigidity.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for hardness and heat resistance in ferrous and exotic metal drilling\u003c\/li\u003e\n\u003cli\u003eCoated finish extends tool life and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003e140-degree drill point angle minimizes walking and reduces entry burr\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports high-speed, high-feed production drilling\u003c\/li\u003e\n\u003cli\u003eR-thinned, tapered web reduces thrust and improves chip flow\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank (0.3750 inches diameter) fits standard drill chucks and collets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and production drill bit within the OSG Series 6500 line, sized for applications in the 0.3000 to 0.3500 inch diameter range with a straight-cylindrical shank compatible with standard drill chucks and collet systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or tool-and-die professionals familiar with CNC or manual drilling equipment. Ensure the machine spindle is fully stopped and the tool changer or chuck is secured before loading or removing the bit. Verify coolant-through lines are clear and pressure is set per machine specifications before running at elevated feed rates. Do not exceed the bit diameter tolerance range of +0 to -0.022 mm when specifying hole fits for precision assemblies.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 21\/64\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3281 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 8.33 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 42.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (Decimal Inch)\u003c\/strong\u003e: 3.9764 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (mm)\u003c\/strong\u003e: 101.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: R-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0 to -0.022 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Alloy Steel, Cast Iron, Titanium, Titanium Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: High Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.17 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 650032711\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51755615093042,"sku":"650032711","price":291.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b46ad03ea5170bff9de3e121ee42436_4936590c-ea38-4175-8285-8f8d54574ad0.jpg?v=1788956951","url":"https:\/\/voomisupply.com\/products\/osg-650032711-screw-machine-drill-bit-21-64-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}