{"product_id":"osg-15242005-cobalt-drill-bit-letter-c-0-2420-inch-tin","title":"Osg 15242005 Cobalt Drill Bit Letter C 0.2420 Inch Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 15242005 is a cobalt jobber length drill bit sized to Letter C (0.2420 inches \/ 6.15 mm), designed for high-performance drilling in steel and alloy steel. It features a 130-degree split point angle with R-thinned web geometry for reduced thrust and self-centering entry without a center punch. The titanium nitride (TiN) coating extends tool life by increasing surface hardness and reducing friction. With an overall length of 4-9\/16 inches and a 2-3\/4 inch flute length, this bit fits standard jobber-length drill chucks. The straight cylindrical shank measures 1\/4 inch in diameter, and the right-hand spiral flute evacuates chips efficiently during through and blind hole operations.\u003c\/p\u003e\u003cp\u003eThis drill bit is intended for drilling in steel and alloy steel workpieces in production machining, maintenance, and fabrication environments. Typical applications include blind hole drilling, cross hole drilling, standard through-hole drilling, and self-centering starts in ferrous metals. The cobalt substrate and TiN coating make it well suited for harder or abrasive steel alloys where standard high-speed steel bits wear prematurely. It is sold individually and fits any drill press, mill, or handheld drill accepting a 1\/4 inch straight shank.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter C size (0.2420 inches \/ 6.15 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 entry thrust\u003c\/li\u003e\n\u003cli\u003eRegular spiral, 2-flute right-hand cut for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003e4-9\/16 inch overall length with 2-3\/4 inch flute length suits standard jobber-length applications\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical 1\/4 inch shank fits standard drill chucks and collets\u003c\/li\u003e\n\u003cli\u003eNo coolant-through design; suitable for dry or external-coolant setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-application drill bit for use in any drill press, CNC drilling station, or handheld power drill accepting a 1\/4 inch straight cylindrical shank. Rated for drilling in steel and alloy steel workpieces per Primary Workpiece Material Code P.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by a qualified machinist or trade professional familiar with drill bit selection and cutting parameters for cobalt tooling. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits. When drilling steel or alloy steel, use appropriate cutting fluid or external coolant where conditions allow to maximize coating life. Do not exceed the rated cutting parameters for cobalt bits in hardened steel without confirming material hardness first.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2420 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 6.15 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\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-9\/16 inches (115 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-3\/4 inches (69 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: 1\/4 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: 0.1 pounds\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: 15242005\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51750427689266,"sku":"15242005","price":78.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9cb8869d91c1c1b74fc8b9a0b25a1ca5.jpg?v=1788915446","url":"https:\/\/voomisupply.com\/products\/osg-15242005-cobalt-drill-bit-letter-c-0-2420-inch-tin","provider":"Voomi Supply","version":"1.0","type":"link"}