{"product_id":"osg-15257005-cobalt-drill-bit-letter-f-0-2570-in-tin","title":"Osg 15257005 Cobalt Drill Bit Letter F 0.2570 in Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 15257005 is a cobalt jobber-length drill bit sized to Letter F (0.2570 inch \/ 6.53 mm), designed for high-performance drilling in steel and alloy steel applications. The bit features a titanium nitride (TiN) coating that reduces friction and extends cutting life. A 130-degree split point promotes self-centering entry and reduces walking on flat or curved workpiece surfaces. With an overall length of 4-11\/16 inches and a flute length of 2-7\/8 inches, this bit fits standard jobber-length applications. The R-thinned web and tapered web configuration reduce thrust requirements and improve chip evacuation. This bit is suited for use by machinists, tool-and-die professionals, and maintenance technicians working with ferrous materials.\u003c\/p\u003e\n\u003cp\u003eThe OSG 15257005 is intended for drilling operations in steel and alloy steel workpieces. It is suited for blind hole drilling, cross hole drilling, through drilling, and self-centering applications. The 3\/8-inch straight-cylindrical shank fits standard drill chucks on hand-held drills, drill presses, and CNC machining centers. The right-hand cutting direction is standard for conventional drilling setups. The Series 1500 designation identifies this as an OSG high-performance cobalt line targeting demanding ferrous material applications in production and maintenance environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter F size (0.2570 inch \/ 6.53 mm) with diameter tolerance of +0 to -0.022 mm\u003c\/li\u003e\n  \u003cli\u003eCobalt construction with titanium nitride (TiN) coating for extended tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e130-degree drill point angle with R-thinned, tapered web for self-centering and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute with right-hand cut promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch straight-cylindrical shank for compatibility with standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eRated for blind hole, cross hole, through drilling, and self-centering tool applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in steel and alloy steel workpieces. Fits standard drill chucks and CNC tool holders accepting a 3\/8-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or maintenance technicians familiar with drill press or CNC operation. Secure the workpiece firmly before drilling and confirm the chuck is properly tightened on the shank before starting the spindle. Coolant-through capability is not supported on this bit; use external cutting fluid when drilling deep holes or working with hard alloy steels to manage heat buildup. Inspect the cutting edges for wear before each use and replace the bit if chipping or dulling is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2570 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 6.53 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Finish\/Coating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-11\/16 inches (119.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-7\/8 inches (73.00 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: 3\/8 inch\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\u003eDiameter 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Blind Hole, Cross Hole, Drilling, Self-Centering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1500\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.098 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: 15257005\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730373542194,"sku":"15257005","price":83.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c358c9c4f69be802d8ac004a4b65a2b3.jpg?v=1788716275","url":"https:\/\/voomisupply.com\/products\/osg-15257005-cobalt-drill-bit-letter-f-0-2570-in-tin","provider":"Voomi Supply","version":"1.0","type":"link"}