{"product_id":"osg-8671150-carbide-screw-machine-drill-bit-0-4528-in","title":"Osg 8671150 Carbide Screw Machine Drill Bit 0.4528 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 8671150 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. With a 0.4528-inch (11.50 mm) diameter and a 140-degree split point, it delivers precise entry and reduced walking on hard surfaces. The R-thinned web reduces thrust force at the center, making it well suited for production drilling environments where cycle time and hole quality matter. At 102.00 mm overall length, this stub-length geometry provides added rigidity compared to jobber-length bits, minimizing deflection in short-hole applications. Licensed machinists, tool-and-die tradespeople, and industrial maintenance technicians are the primary users of this bit.\u003c\/p\u003e\n\u003cp\u003eThe OSG 8671150 is intended for drilling steel, alloy steel, and cast iron in both shop and field environments. It belongs to OSG Series 6300 and carries a 2xD flute-to-diameter ratio, making it appropriate for through-holes and blind holes within that depth range. The coated finish extends tool life in abrasive ferrous materials. This bit is a strong fit for CNC machining centers, drill presses, and manual turret lathes where a straight-cylindrical shank and consistent diameter tolerance are required for reliable chuck engagement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle reduces thrust and improves self-centering on entry\u003c\/li\u003e\n  \u003cli\u003eR-thinned web lowers drilling thrust at the chisel edge\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides superior rigidity and reduced deflection\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends tool life when drilling steel and alloy steel\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank with 12.00 mm shank diameter fits standard chucks without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling steel, alloy steel, and cast iron workpieces. Compatible with any drill press, CNC machining center, or turret lathe equipped to accept a straight-cylindrical 12.00 mm shank and capable of the feed and speed parameters appropriate for solid carbide tooling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSolid carbide tooling requires secure chuck or collet engagement to prevent slippage and bit breakage. Always confirm the spindle and workpiece are properly fixtured before starting the cut. Carbide is brittle compared to high-speed steel  -  avoid interrupted cuts or side loading beyond the designed flute depth. No coolant-through capability is present on this bit, so adequate external coolant or cutting fluid should be applied when drilling at production feed rates in steel.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.4528 inches (11.50 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: 102.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 55.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 12.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\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\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 2xD\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: R-Thinned\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 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0 to -0.027 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.4500 to 0.5000 inches (11.00 to 13.50 mm)\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: 0.27 pounds\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: 8671150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":52002843492658,"sku":"8671150","price":314.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92ac2d2de290359753c194556239fb2a_9214e53d-f808-4372-9d98-863a9cb40c5f.jpg?v=1789998365","url":"https:\/\/voomisupply.com\/products\/osg-8671150-carbide-screw-machine-drill-bit-0-4528-in","provider":"Voomi Supply","version":"1.0","type":"link"}