{"product_id":"osg-630038911-screw-machine-drill-bit-25-64-solid-carbide","title":"Osg 630038911 Screw Machine Drill Bit 25\/64 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 630038911 is a screw machine length solid carbide drill bit designed for high-performance drilling in demanding metalworking applications. It measures 25\/64 inch (0.3906 inch decimal, 9.92 mm) in diameter with a 140-degree drill point angle and a coated finish for extended tool life. The bit features a right-hand cut, two-flute spiral configuration, and a straight-cylindrical shank. With an overall length of 89 mm and a flute length of 47 mm, this compact stub-length geometry delivers rigidity and accuracy in short-reach drilling setups. It is suited for machinists, tool and die technicians, and production drilling operations.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is built for cutting steel, alloy steel, and cast iron. The screw machine length format makes it a practical choice for CNC machining centers, drill presses, and manual turret lathes where clearance is limited and hole placement accuracy is critical. The R-thinned web reduces thrust load at entry, improving center-starting performance in production runs. The 2xD flute-to-diameter ratio supports efficient chip evacuation in short-depth holes. No coolant-through capability is present, so external coolant or cutting fluid application is standard practice for this configuration.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard metal drilling\u003c\/li\u003e\n  \u003cli\u003e140-degree split-point geometry with R-thinned web reduces walking and thrust load\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends cutting edge life in steel and cast iron applications\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides maximum rigidity in tight-clearance setups\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks and collet holders\u003c\/li\u003e\n  \u003cli\u003eTwo-flute spiral design with tapered web promotes clean chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a high-performance replacement drill bit for production and precision machining operations involving steel, alloy steel, and cast iron workpieces within the 0.3500 to 0.4000 inch diameter range, per OSG Series 6300 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tool setters in machine shop environments. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the straight-cylindrical shank in a properly sized collet, drill chuck, or tool holder to the machine manufacturer's specified clamping torque range. Apply cutting fluid externally during operation when drilling steel or cast iron to manage heat and extend tool life.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Fractional)\u003c\/strong\u003e: 25\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.3906 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (mm)\u003c\/strong\u003e: 9.92 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 89 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 47 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 2xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Alloy Steel, Cast Iron\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\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6300\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: High Performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.265 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 630038911\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51755423924530,"sku":"630038911","price":246.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92ac2d2de290359753c194556239fb2a_04e2c090-73e9-4126-b754-b3f16cd7f479.jpg?v=1788954900","url":"https:\/\/voomisupply.com\/products\/osg-630038911-screw-machine-drill-bit-25-64-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}