{"product_id":"cleveland-c14677-letter-o-cobalt-screw-machine-drill-bit","title":"Cleveland C14677 Letter O Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C14677 is a cobalt screw machine length drill bit sized at Letter O (0.3160 inches) with a 135-degree split point and web-thinned geometry. Built from M42 cobalt high-speed steel, it is designed for heavy-duty drilling in tough materials including alloy steel and aluminum. The shortened screw machine length body reduces deflection in close-quarters drilling and rigid setups. With a straight cylindrical shank at 0.3160 inches in diameter and an overall length of 2-15\/16 inches, this bit fits standard drill chucks and CNC tool holders. Right-hand cut with a regular spiral and parallel web configuration, it delivers clean entry and efficient chip evacuation in production environments.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for metal fabrication shops, machine shops, and production drilling operations where rigidity and hole accuracy are priorities. The screw machine length format is commonly selected for drill press, turret lathe, and CNC machining center applications where stub-length tools reduce runout and improve positional accuracy. The 135-degree split point reduces thrust and self-centers on flat or curved surfaces without a center punch in many applications. Typical users include machinists, tool-and-die technicians, and maintenance professionals working with ferrous and non-ferrous metals.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter O size: 0.3160 inches diameter with tolerance of +0.0000 to -0.0010 inches\u003c\/li\u003e\n\u003cli\u003eM42 cobalt construction rated for heavy-duty drilling in alloy steel and aluminum\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning for reduced thrust and self-centering entry\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length at 2-15\/16 inches OAL for improved rigidity and reduced deflection\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank at 0.3160 inches diameter fits standard chucks and collets\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with regular spiral and 2-flute configuration for efficient chip removal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style screw machine length drill bit compatible with standard drill chucks, collets, and CNC tool holders accepting a 0.3160-inch straight cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with cutting tool safety practices. Secure the shank fully in the chuck or collet before operation and verify runout before production drilling. Always power down and lock out the machine before changing tooling. Follow applicable shop safety standards and manufacturer recommendations for speeds and feeds based on workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3160 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel\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\u003eFlute Length\u003c\/strong\u003e: 1-11\/16 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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 Length\u003c\/strong\u003e: 1-1\/4 inches (1.2500 inches)\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\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Alloy Steel, Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2133\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B94.11M, ANSI, DIN 1897\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: C14677\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51690641621298,"sku":"C14677","price":21.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1ae962cb60a5811bd746b22fa1076a93.jpg?v=1788273189","url":"https:\/\/voomisupply.com\/products\/cleveland-c14677-letter-o-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}