{"product_id":"precision-twist-drill-5997703-no-18-cobalt-jobber-drill","title":"Precision Twist Drill 5997703 No. 18 Cobalt Jobber Drill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5997703 is a No. 18 wire-gauge cobalt jobber-length drill bit engineered for heavy-duty drilling in ferrous and non-ferrous metals. Ground to a 135-degree split point with web thinning, it starts on contact without walking and reduces thrust force compared to standard 118-degree points. The bit is manufactured from cobalt high-speed steel with a straw oxide finish for added heat resistance. Overall length is 3.25 inches with a 2.125-inch flute length, and the straight shank diameter measures 0.1695 inches. It belongs to the PRECISION TWIST DRILL R10CO-R15CO-R18CO series and meets ANSI and NAS 907 standards. Licensed tradespeople and machinists use this bit in production and maintenance drilling applications.\u003c\/p\u003e\u003cp\u003eThis bit is rated for drilling steel, stainless, cast iron, aluminum, and other materials across workpiece material codes P, M, K, N, and S. Its 13xD flute-to-diameter ratio provides efficient chip evacuation in moderate-depth holes up to 2.125 inches. The two-flute regular spiral design suits general-purpose drilling in both handheld and drill-press setups. It is sold individually and is a direct fit for applications requiring a No. 18 wire gauge size at 0.1695 inches decimal diameter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt HSS construction for elevated heat resistance in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning for self-centering starts and reduced thrust\u003c\/li\u003e\n\u003cli\u003eStraw oxide finish improves lubricity and surface hardness at the cutting edge\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank at 0.1695 inches fits standard drill chucks without adapters\u003c\/li\u003e\n\u003cli\u003eTwo-flute regular spiral geometry evacuates chips efficiently in general-purpose drilling\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and NAS 907 standards; heavy-duty grade for demanding 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 applications requiring a No. 18 wire gauge size (0.1695 inches decimal). Part of the PRECISION TWIST DRILL R10CO-R15CO-R18CO series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed by machinists and maintenance technicians using standard three-jaw drill chucks or collet systems rated for straight-shank tooling. Secure the shank fully in the chuck before operation and verify runout before drilling into finished surfaces. Use cutting fluid appropriate for the workpiece material to extend edge life, particularly when drilling steel or stainless. Do not exceed the recommended drilling depth of 2.125 inches without withdrawing to clear chips.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1695 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Cobalt High-Speed Steel\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\u003eOverall Length\u003c\/strong\u003e: 3.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1695 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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: 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\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered with Web Thinning\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\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04167 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: 5997703\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51695125791026,"sku":"5997703","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fd6336b34c1d0261f5eb3b4d3e77059f_5adeda8e-4e33-40e3-a52f-c2438600f2f9.jpg?v=1788331570","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5997703-no-18-cobalt-jobber-drill","provider":"Voomi Supply","version":"1.0","type":"link"}