{"product_id":"cleveland-c70031-cobalt-drill-bit-1-2-inch-135-degree","title":"Cleveland C70031 Cobalt Drill Bit 1\/2 Inch 135 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C70031 is a cobalt jobber-length drill bit designed for demanding metal-cutting applications in industrial and trade environments. Built from M42 cobalt high-speed steel, it carries a gold oxide coating that improves lubricity and wear resistance during high-heat drilling cycles. The bit features a 135-degree split point for fast self-centering penetration with reduced walking on entry, and a web-thinned, tapered web construction that lowers thrust requirements. At 6 inches overall length with a 4.5-inch spiral flute, this is a standard jobber-length format suited to drill presses, hand drills, and CNC setups alike. Licensed machinists, pipefitters, and maintenance technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis bit is rated for use in aluminum as its primary workpiece material and meets NAS 907 Type J specification, making it appropriate for aerospace-adjacent and heavy-duty industrial work. The straight-cylindrical shank measures 0.5000 inches in diameter, fitting standard 1\/2-inch chuck equipment. The regular spiral flute geometry evacuates chips efficiently in through-hole and blind-hole drilling in soft-to-medium metals. It is part of CLEVELAND Series 2213, a heavy-duty cobalt line built for production environments where tool life under high-speed and high-feed conditions is a priority.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt high-speed steel construction for extended tool life in abrasive and heat-intensive cuts\u003c\/li\u003e\n  \u003cli\u003e135-degree split point self-centers on contact, reducing walking and pilot hole requirements\u003c\/li\u003e\n  \u003cli\u003eGold oxide coating improves lubricity and resists heat buildup at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web lowers feed force and reduces drill press or hand-drill strain\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical 1\/2-inch shank fits standard keyless and keyed chucks\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 Type J specification for heavy-duty and aerospace-adjacent applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-specification replacement or production-supply drill bit for use with any drill press, hand drill, or CNC spindle equipped with a 1\/2-inch or larger chuck. Rated for aluminum as the primary workpiece material per NAS 907 Type J. Fits CLEVELAND Series 2213 tooling programs.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, pipefitters, maintenance technicians, or qualified trade professionals using standard drill press or hand-drill equipment. Secure the straight shank firmly in a properly sized chuck before operation and verify chuck key is removed before powering the tool. Apply appropriate cutting fluid or coolant for extended drilling cycles, particularly in ferrous or hard-alloy materials, to preserve coating integrity and edge life. Dispose of worn bits in accordance with local shop safety and sharps-handling procedures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.5 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt (M42 High-Speed Steel)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish \/ Coating\u003c\/strong\u003e: Gold Oxide\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 Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum\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\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.4 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: C70031\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51701029667122,"sku":"C70031","price":39.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/68e71fac92ed610a068aecfe4d190284_7189f2d9-a321-4fa7-882d-39d78d53dd8a.jpg?v=1788397052","url":"https:\/\/voomisupply.com\/products\/cleveland-c70031-cobalt-drill-bit-1-2-inch-135-degree","provider":"Voomi Supply","version":"1.0","type":"link"}