{"product_id":"osg-10277005-screw-machine-drill-bit-0-277-in-cobalt-hss","title":"Osg 10277005 Screw Machine Drill Bit 0.277 in Cobalt Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 10277005 is a cobalt high speed steel screw machine length drill bit designed for high-performance drilling in steel and alloy steel workpieces. With a 0.277 inch (letter size J) diameter and a 130-degree drill point angle, this bit delivers aggressive penetration and clean entry in short-reach applications. The R-thinned web reduces thrust and improves centering without sacrificing edge strength. Right-hand spiral flutes evacuate chips efficiently, making this bit well suited for production drilling environments where tool life and hole quality are priorities. Licensed tradespeople and machining professionals install this type of tooling in drill press, CNC, and hand-held power tool setups.\u003c\/p\u003e\u003cp\u003eScrew machine length drill bits are shorter than jobber-length bits, providing added rigidity in tight clearance situations or when working in confined machine setups. The OSG 10277005 Series 1000 bit is intended for drilling steel and alloy steel in light manufacturing, maintenance, and fabrication applications. Its straight-cylindrical shank fits standard drill chucks without adapters, and the 1.5 inch flute length accommodates typical shallow-to-moderate depth holes in production drilling contexts.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt high speed steel construction for improved heat and wear resistance in steel drilling\u003c\/li\u003e\n\u003cli\u003e130-degree drill point angle for fast penetration and reduced walking on harder workpieces\u003c\/li\u003e\n\u003cli\u003eR-thinned web reduces cutting thrust and improves self-centering\u003c\/li\u003e\n\u003cli\u003eRegular spiral, 2-flute design promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eScrew machine length body provides added rigidity over standard jobber-length bits\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for drilling steel and alloy steel workpieces. Fits any standard drill chuck or collet accepting a straight-cylindrical shank at the specified 0.277 inch diameter. Diameter tolerance is plus 0 to minus 0.022 mm.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tooling is installed and operated by machinists, maintenance technicians, and fabrication professionals. Secure the workpiece firmly before drilling and confirm chuck runout is within acceptable tolerance to preserve hole quality and tool life. Use appropriate cutting fluid or coolant for the workpiece material when possible, even though this bit does not have coolant-through capability. Inspect the cutting edges for wear or chipping before each use and replace the bit if edge integrity is compromised.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2770 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 7.04 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-1\/2 inches\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eTool Material\u003c\/strong\u003e: Cobalt High Speed Steel\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 3xD\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: Plus 0 to minus 0.022 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 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: 10277005\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51732360724786,"sku":"10277005","price":70.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/38ff30840eec64c3e3627783cc2373a0.jpg?v=1788742066","url":"https:\/\/voomisupply.com\/products\/osg-10277005-screw-machine-drill-bit-0-277-in-cobalt-hss","provider":"Voomi Supply","version":"1.0","type":"link"}