{"product_id":"cleveland-c70088-cobalt-jobber-drill-bit-4-1-mm","title":"Cleveland C70088 Cobalt Jobber Drill Bit 4.1 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C70088 is a cobalt jobber-length drill bit designed for accurate, high-performance drilling in metalworking applications. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, this bit resists heat and wear during demanding cutting operations. The 135-degree split point reduces walking and decreases thrust force, allowing clean entry without a center punch in many setups. At 2.95 inches overall length with a 1.693-inch flute length, the C70088 fits standard drill chucks and drill presses used throughout the trade. Right-hand spiral flutes with a regular helix evacuate chips efficiently, keeping the cutting edge cool and prolonging tool life.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is sized at 4.1 mm (0.1614 inches) and is suited for drilling aluminum, light ferrous metals, and similar materials in fabrication, HVAC sheet metal work, plumbing rough-in, and electrical panel installations. The straight-cylindrical shank at 0.1614 inches diameter seats securely in keyless or keyed chucks. Heavy-duty grade construction and NAS 907 Type J compliance make it a reliable choice for production and service work where dimensional accuracy and bit longevity matter. The web-thinned, tapered web configuration further reduces cutting resistance in deeper hole applications.\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 under heat\u003c\/li\u003e\n  \u003cli\u003eGold oxide coating reduces friction and provides corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e135-degree split point minimizes walking and lowers required thrust\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web reduces cutting resistance in deep holes\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flutes with regular helix promote efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 Type J specification for dimensional and performance consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber-length drill bit compatible with standard keyless and keyed drill chucks accepting a 0.1614-inch straight-cylindrical shank. Recommended primary workpiece material is aluminum; also suitable for light ferrous and non-ferrous metals consistent with cobalt HSS tooling capabilities.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and removed by qualified machinists, fabricators, or trade technicians using a standard drill press, hand drill, or drill motor. Ensure the chuck is fully tightened and the workpiece is clamped securely before beginning a cut. Run at appropriate speeds for the workpiece material and bit diameter to avoid overheating the cutting edge. Inspect the bit for wear or chipping before each use and replace when point geometry is compromised.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.1 mm (0.1614 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.95 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.693 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.2599 inches (32 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1614 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: 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Gold Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit 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: -0.0007 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\u003eSeries\u003c\/strong\u003e: 2213\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907 Type J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: C70088\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51715525280050,"sku":"C70088","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/68e71fac92ed610a068aecfe4d190284_0c2e45fb-5aed-4b60-9ee6-dad17c5da9e6.jpg?v=1788515152","url":"https:\/\/voomisupply.com\/products\/cleveland-c70088-cobalt-jobber-drill-bit-4-1-mm","provider":"Voomi Supply","version":"1.0","type":"link"}