{"product_id":"osg-17549911-taper-length-drill-bit-21-64-in-cobalt","title":"Osg 17549911 Taper Length Drill Bit 21\/64 in Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 17549911 is a taper length drill bit built for high-performance metal cutting across a wide range of materials. Constructed from HSS-E cobalt (M6K grade), it carries a WXL coating for extended tool life and reduced friction in demanding applications. The bit features a 120-degree point angle with a standard point type and R-thinned web for improved chip evacuation and easier center engagement. With a 21\/64 inch diameter, a spiral flute length of 110 millimeters, and an overall length of 165 millimeters, this bit is suited for production drilling where reach and rigidity both matter. It is installed by machinists, tool-and-die workers, and maintenance technicians working in metal fabrication and general manufacturing environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for use on alloy steel, carbon steel, stainless steel, cast iron, aluminum, die steel, and hardened steel. The fast spiral flute geometry promotes aggressive chip removal, making it appropriate for both CNC and manual drill press setups where material work-hardening or heat buildup is a concern. The straight cylindrical shank accepts standard drill chucks without a reducing sleeve or adapter. It is a strong fit for shops running stainless or hardened steel where standard HSS tooling underperforms.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHSS-E cobalt construction (M6K material grade) for heat and wear resistance in hard metals\u003c\/li\u003e\n  \u003cli\u003eWXL coating reduces friction and extends cutting edge life\u003c\/li\u003e\n  \u003cli\u003e120-degree point angle with R-thinned web for improved chip flow and self-centering entry\u003c\/li\u003e\n  \u003cli\u003eFast spiral flute geometry promotes efficient chip evacuation in deep holes\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration adds rigidity along the flute length\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0.000 to -0.022 mm for consistent hole quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks on CNC machining centers, drill presses, and manual machines where a straight-shank taper length bit is required. Rated for drilling alloy steel, aluminum, carbon steel, cast iron, die steel, hardened steel, and stainless steel per OSG Series 1750 application guidelines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by machinists or maintenance technicians using a standard drill chuck sized for a 21\/64 inch straight shank. Secure the shank fully in the chuck before operation and verify runout is within acceptable limits for the application. Use appropriate cutting fluid or coolant when drilling stainless steel, hardened steel, or cast iron to manage heat and prolong tool life. Do not exceed the recommended feed and speed parameters for the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 21\/64 inch (0.3281 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 165 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 110 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 120 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: HSS-E Cobalt (M6K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: WXL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Fast\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, R-Thinned\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: 21\/64 inch\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\u003eDiameter Tolerance\u003c\/strong\u003e: +0.000 to -0.022 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Cast Iron, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1750\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: 17549911\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731723452722,"sku":"17549911","price":226.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5a652bd1c2eb52d1a498d456b1cbd751.jpg?v=1788734280","url":"https:\/\/voomisupply.com\/products\/osg-17549911-taper-length-drill-bit-21-64-in-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}