{"product_id":"cleveland-c04544-screw-machine-drill-bit-letter-o-hss","title":"Cleveland C04544 Screw Machine Drill Bit Letter O Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C04544 is a screw machine length (stub) drill bit sized to Letter O, equal to 0.3160 inches in diameter, designed for general-purpose drilling in metal fabrication and machining environments. Built from high-speed steel with a bright, uncoated finish, it features a standard 118-degree split point and a web-thinned, parallel-web construction that reduces thrust and improves chip clearance at entry. At 2-15\/16 inches overall length with a 1-11\/16-inch flute, this short-body geometry offers increased rigidity in close-tolerance setups. Machinists, tool-and-die technicians, and production shop personnel are the primary users.\u003c\/p\u003e\u003cp\u003eThe C04544 is suited for drilling alloy steel, aluminum, and similar workpiece materials in production and job-shop environments. Its screw machine length profile makes it well-matched for drill press, turret lathe, and CNC work-holding setups where a standard jobber-length bit would introduce unnecessary runout or deflection. The straight-cylindrical shank accepts standard three-jaw drill chucks without adapters. Two spiral flutes with a regular helix angle handle chip evacuation across a broad range of feed and speed combinations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter O size — 0.3160 inches diameter, tolerance +0.0000 to -0.0010 inches per ASME B94.11M\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web thinning reduces entry thrust\u003c\/li\u003e\n\u003cli\u003eShort screw machine length body (2-15\/16 inches OAL) maximizes rigidity\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction rated for general-purpose metal cutting\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with cutting fluids\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, straight-cylindrical shank — no coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style general-purpose screw machine drill bit compatible with any standard three-jaw chuck or collet system accepting a 0.3160-inch straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the shank fully in the chuck and verify runout before drilling. Power down and lock out the spindle before changing bits or adjusting workholding. Use an appropriate cutting fluid for the workpiece material to extend tool life. Follow machine manufacturer feed and speed recommendations for high-speed steel tooling in alloy and aluminum stock.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: Letter O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter (Decimal Inch)\u003c\/strong\u003e: 0.3160 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-15\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-11\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1-1\/4 inches (1.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3160 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Alloy, Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0010 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B94.11M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C04544\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51690522083634,"sku":"C04544","price":44.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/87d270e0adcc55a27076cb9e28710ef4.jpg?v=1788270929","url":"https:\/\/voomisupply.com\/products\/cleveland-c04544-screw-machine-drill-bit-letter-o-hss","provider":"Voomi Supply","version":"1.0","type":"link"}