{"product_id":"cleveland-c70190-cobalt-drill-bit-no-57-0-0430-in","title":"Cleveland C70190 Cobalt Drill Bit No. 57 0.0430 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C70190 is a cobalt jobber-length drill bit designed for precision drilling in demanding trade and industrial applications. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, this bit delivers enhanced heat and wear resistance compared to standard HSS tooling. It features a 135-degree split point for fast penetration and reduced walking on entry, a two-flute regular spiral configuration, and a web-thinned, tapered web design for improved chip evacuation. The straight-cylindrical shank measures 0.0430 inches in diameter and seats securely in standard drill chucks. Overall length is 1.75 inches with a flute length of 0.75 inches.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for metalworking and fabrication environments where aluminum and similar non-ferrous or soft ferrous materials are drilled regularly. The No. 57 wire gauge size (0.0430 inches) is a common choice for precision hole sizing in electronics, aerospace component work, and light mechanical fabrication. It is sized and ground to NAS 907 Type J standards, making it appropriate for shops and contractors requiring specification-controlled tooling. Machinists, maintenance technicians, and trade professionals installing or fabricating metal components will find this bit a reliable production choice.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for high heat resistance and extended tool life in hard or abrasive materials\u003c\/li\u003e\n\u003cli\u003eGold oxide coating reduces friction and improves chip flow\u003c\/li\u003e\n\u003cli\u003e135-degree split point promotes accurate entry and faster penetration with less feed pressure\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web improves chip evacuation and reduces thrust load\u003c\/li\u003e\n\u003cli\u003eTwo-flute regular spiral design provides balanced cutting action\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 Type J specification for controlled-tolerance applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and production-grade jobber drill bit for use in standard drill chucks and drill presses accepting a 0.0430-inch straight-cylindrical shank. Primary workpiece material compatibility listed as aluminum per manufacturer specification data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this bit should be performed by machinists or qualified trade technicians familiar with drilling equipment and tooling safety. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before operation. Use appropriate cutting fluid or coolant when drilling ferrous materials to prolong bit life, even though this bit does not support coolant-through delivery. Inspect the cutting edges and point geometry before each use and replace the bit if chipping or wear is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 57\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0430 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42 Cobalt HSS\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: Standard Split Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish \/ Coating\u003c\/strong\u003e: Gold Oxide\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\u003eOverall Length\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0430 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0005 to 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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 J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2213\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Heavy Duty\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: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C70190\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51698943918386,"sku":"C70190","price":52.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/68e71fac92ed610a068aecfe4d190284_6c1b91b2-f37b-46c1-90c3-fdc9ff55e905.jpg?v=1788370169","url":"https:\/\/voomisupply.com\/products\/cleveland-c70190-cobalt-drill-bit-no-57-0-0430-in","provider":"Voomi Supply","version":"1.0","type":"link"}