{"product_id":"cleveland-c11649-letter-u-jobber-drill-bit-hss-135","title":"Cleveland C11649 Letter U Jobber Drill Bit Hss 135","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C11649 is a jobber-length drill bit sized to Letter U (0.3680 inches), designed for general-purpose drilling in metal fabrication and maintenance applications. Built from high-speed steel with a bright uncoated finish, this bit features a 135-degree split point that reduces walking on entry and lowers thrust requirements compared to a conventional 118-degree point. The web-thinned, tapered web construction further reduces cutting resistance. With an overall length of 5 inches and a flute length of 3.625 inches, it delivers the reach and chip-clearing capacity typical jobber-length work demands. A licensed HVAC tech, pipefitter, or maintenance mechanic reaching for a Letter U bit to tap a 3\/8-16 or similar hole will find this a reliable, heavy-duty option.\u003c\/p\u003e\n\u003cp\u003eThe C11649 is suited for drilling aluminum as the primary workpiece material, though its heavy-duty HSS construction handles a broad range of general metalworking tasks. The straight-cylindrical shank seats directly in standard drill chucks without adapters, making it compatible with benchtop drill presses, hand drills, and magnetic drills used in field and shop environments. The right-hand spiral flute promotes efficient chip evacuation during through-hole and blind-hole drilling operations. This bit carries NAS 907 Type B compliance, a specification common in aerospace and industrial maintenance contexts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter U size: 0.3680 inches diameter with a tight tolerance of -0.0010 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces walking and lowers required feed pressure\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web for reduced cutting resistance and easier penetration\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with bright uncoated finish for general metalworking use\u003c\/li\u003e\n  \u003cli\u003eNAS 907 Type B compliant — meets aerospace and industrial maintenance specifications\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks with no adapter required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard jobber-length drill bit for use in any drill press, cordless or corded hand drill, or magnetic base drill equipped with a chuck that accepts a 0.3680-inch straight shank. Primary workpiece material is aluminum; also applicable to general metalworking per NAS 907 Type B service requirements.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall the bit securely in a properly sized drill chuck and verify the shank is fully seated before operation. Secure the workpiece with clamps or a vise — never hand-hold small workpieces during drilling. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Follow applicable shop-safety standards and PPE requirements for rotating tooling.\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: U\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3680 inches\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\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\u003eFlute Length\u003c\/strong\u003e: 3.625 inches (3-5\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 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: 0.3680 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0010 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2222\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.6 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: CLEVELAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C11649\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51706745782578,"sku":"C11649","price":20.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b4c4a29380e01024fe976e100d1f882c.jpg?v=1788436417","url":"https:\/\/voomisupply.com\/products\/cleveland-c11649-letter-u-jobber-drill-bit-hss-135","provider":"Voomi Supply","version":"1.0","type":"link"}