{"product_id":"osg-8671080-screw-machine-drill-bit-0-4252-in-solid-carbide","title":"Osg 8671080 Screw Machine Drill Bit 0.4252 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8671080 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous workpiece materials. It measures 0.4252 inches (10.80 mm) in diameter with a 140-degree split-point geometry and an R-thinned web to reduce thrust and improve center-starting accuracy. The straight-cylindrical shank seats in standard drill chucks or collet holders without modification. At 102.00 mm (approximately 4.02 inches) overall length, this stub-length bit offers increased rigidity compared to jobber-length equivalents, making it well suited for production environments where hole location and repeatability matter. Installation is handled by machinists, tool-and-die technicians, and CNC operators.\u003c\/p\u003e\u003cp\u003eThis drill bit is built for cutting steel, alloy steel, and cast iron in screw machine, CNC turning center, and machining center applications. The Series 6300 designation places it in OSGs high-performance carbide drill line, engineered for shops running tight tolerances on hard or abrasive ferrous materials. The 2xD flute-to-diameter ratio keeps chip evacuation efficient at the short flute lengths typical of screw machine operations. Coolant-through capability is not available on this model, so flood or mist coolant applied externally is the standard approach for heat management in production runs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in ferrous materials\u003c\/li\u003e\n\u003cli\u003e140-degree drill point angle reduces thrust and improves entry on harder steels\u003c\/li\u003e\n\u003cli\u003eR-thinned web minimizes walking and lowers required feed force\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute geometry promotes consistent chip flow in through-hole drilling\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 12.00 mm (0.472 inches) diameter fits standard toolholders\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance of +0 to -0.027 mm supports close-tolerance hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in steel, alloy steel, and cast iron workpieces. Suitable for screw machine operations and CNC machining centers using standard straight-shank toolholding with a 12.00 mm bore.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and operated by machinists or CNC technicians. Confirm spindle RPM and feed rate are appropriate for the workpiece material and hole depth before cutting. Secure the shank fully in the collet or drill chuck to the recommended grip depth to prevent pullout under load. Do not use this bit on nonferrous or composite materials outside its rated workpiece range, as carbide grades are optimized for the materials listed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.4252 inches (10.80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 12.00 mm (0.472 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 102.00 mm (approximately 4.02 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 55.00 mm (approximately 2.17 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\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, 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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 2xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0 to -0.027 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 4.15 x 0.7 x 0.6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.24 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 8671080\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730220908850,"sku":"8671080","price":209.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92ac2d2de290359753c194556239fb2a_11f7cf33-ea69-44e6-ab40-04264040dc24.jpg?v=1788713562","url":"https:\/\/voomisupply.com\/products\/osg-8671080-screw-machine-drill-bit-0-4252-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}