{"product_id":"precision-twist-drill-5997727-cobalt-jobber-drill-no-27","title":"Precision Twist Drill 5997727 Cobalt Jobber Drill No. 27","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5997727 is a No. 27 wire gauge cobalt jobber-length drill bit designed for production and maintenance drilling in steel and other ferrous and non-ferrous materials. It measures 0.1440 inches in diameter with a 3.0-inch overall length and features a 135-degree split-point geometry that reduces walking on entry and lowers thrust requirements compared to a conventional 118-degree point. The straw oxide finish provides a degree of lubricity and heat resistance during cutting. This bit is built to heavy-duty grade standards and suits applications where carbon steel twist drills wear too quickly.\u003c\/p\u003e\u003cp\u003eThis jobber drill is suited for general-purpose hole-making in steel, cast iron, aluminum, and similar materials in both shop and field environments. The 1.875-inch flute length allows drilling to a maximum depth of 1.875 inches in a single pass without retraction. It is a single-piece consumable used by machinists, maintenance technicians, pipefitters, and fabricators working on production lines, MRO tasks, or structural fabrication. The straight shank accepts standard three-jaw chucks on drill presses, hand drills, and CNC machines.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNo. 27 wire gauge size — 0.1440-inch diameter for precise hole sizing\u003c\/li\u003e\n\u003cli\u003eCobalt high-speed steel construction for extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003e135-degree web-thinned split point reduces thrust and minimizes drill walking on flat surfaces\u003c\/li\u003e\n\u003cli\u003eStraw oxide finish provides lubricity and mild heat resistance\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute with tapered web configuration for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and NAS 907 standards for jobber-length drill geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or consumable drill bit for use in standard three-jaw drill chucks accepting a 0.1440-inch straight shank, compatible with the R10CO-R15CO-R18CO series from PRECISION TWIST DRILL.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or maintenance technicians familiar with rotating cutting tools. Secure the straight shank fully in the chuck jaws and tighten with a chuck key before operating. Always power down and de-energize the drill press or machine tool before changing bits. Use appropriate cutting fluid or coolant for steel workpieces to extend bit life, noting that this bit does not support through-coolant delivery.\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. 27\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1440 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\u003ePoint Type\u003c\/strong\u003e: Standard Split Point, Web-Thinned\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: 3.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1440 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: 1.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 13xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P, M, K, N, S material codes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\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\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: 5997727\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51701900214578,"sku":"5997727","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fd6336b34c1d0261f5eb3b4d3e77059f_6ca3a374-19f3-4687-aab1-f582363b9b3a.jpg?v=1788406662","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5997727-cobalt-jobber-drill-no-27","provider":"Voomi Supply","version":"1.0","type":"link"}