{"product_id":"precision-twist-drill-5997848-cobalt-jobber-drill-bit","title":"Precision Twist Drill 5997848 Cobalt Jobber Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5997848 is a cobalt jobber-length drill bit sized to wire gauge 80 (0.0135 inches decimal equivalent). It features a 135-degree split-point geometry with web thinning, which reduces walking on entry and lowers thrust force when drilling into steel and other hard workpiece materials. The straw oxide finish provides mild lubricity and heat resistance during general-purpose drilling operations. With an overall length of 0.75 inches and a flute length of 0.125 inches, this bit is built for precision work in tight geometries. Two regular spiral flutes evacuate chips efficiently in right-hand cutting rotation. It meets ANSI and NAS 907 standards and is rated heavy duty for production and maintenance drilling.\u003c\/p\u003e\u003cp\u003eThis bit is suited for drilling steel, cast iron, non-ferrous metals, and high-temperature alloys in applications where standard high-speed steel bits wear prematurely. The cobalt construction makes it appropriate for aerospace, tool-and-die, metal fabrication, and precision machining environments. It is intended for use in drill presses, CNC machining centers, or hand drilling where a straight-cylindrical shank and consistent geometry are required. The Series R10CO-R15CO-R18CO designation places it within a family of cobalt jobber drills designed for consistent performance on hard and abrasive materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire size 80 (0.0135 inches) cobalt construction for drilling hard and abrasive metals\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning reduces thrust and prevents bit walking on entry\u003c\/li\u003e\n\u003cli\u003eStraw oxide coating provides heat resistance and mild lubricity\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute design with 9xD flute-to-diameter ratio for effective chip evacuation\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction with straight cylindrical shank (0.0135 inches shank diameter)\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and NAS 907 standards; rated heavy duty for production use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use cobalt jobber drill bit for general-purpose and heavy-duty drilling in steel and similar workpiece materials. Compatible applications are identified under Series R10CO-R15CO-R18CO. Primary workpiece material codes P, M, K, N, and S are supported per the manufacturer specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this bit should be performed by a qualified machinist or metalworking professional using appropriate chuck or collet tooling matched to the 0.0135-inch straight shank. Ensure the drill press, mill, or hand drill is powered down and secured before changing bits. Use appropriate cutting fluid or lubricant when drilling steel or hard alloys to extend tool life. Do not exceed the rated maximum drilling depth of 0.125 inches without retracting to clear chips.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0135 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\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\u003eFlute Length\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.75 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: 0.0135 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R10CO-R15CO-R18CO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (Material Codes P, M, K, N, S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 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: PRECISION TWIST DRILL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5997848\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51712084934962,"sku":"5997848","price":95.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fd6336b34c1d0261f5eb3b4d3e77059f_eae6b06c-eceb-4a68-86fd-a4157e47332f.jpg?v=1788483534","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5997848-cobalt-jobber-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}