{"product_id":"precision-twist-drill-5997888-cobalt-jobber-drill-no-49","title":"Precision Twist Drill 5997888 Cobalt Jobber Drill No. 49","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5997888 is a cobalt high-speed steel jobber-length drill bit sized to No. 49 wire gauge (0.0730 inches decimal equivalent). It features a 135-degree split point with web thinning for self-centering entry and reduced thrust on hard ferrous materials. The straw oxide finish provides mild lubricity and heat resistance. At 2 inches overall length with a 1-inch flute, this is a short, rigid bit suited for close-quarter drilling in tooling, fixturing, and precision sheet metal work. Licensed machinists, tool-and-die makers, HVAC fabricators, and plumbers working with steel sheet or brackets are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis bit is built for general-purpose drilling in steel, stainless, cast iron, aluminum, non-ferrous alloys, and high-temp alloys as indicated by the P, M, K, N, and S workpiece material codes. Typical applications include small-diameter through-hole drilling in structural steel, sheet metal fabrication, and maintenance work where tight tolerances and a clean, accurate entry hole are required. The straight cylindrical shank seats directly in standard drill chucks without adapters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNo. 49 wire size, 0.0730 inch decimal diameter for precise small-bore drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web thinning reduces walking and lowers feed pressure\u003c\/li\u003e\n  \u003cli\u003eCobalt steel construction handles elevated cutting temperatures in hard steels and stainless\u003c\/li\u003e\n  \u003cli\u003eStraw oxide finish adds mild corrosion resistance and lubricity\u003c\/li\u003e\n  \u003cli\u003eRegular spiral, 2-flute design promotes efficient chip evacuation in through-hole drilling\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 standards for jobber drill geometry and tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit jobber drill for use in standard drill chucks and precision collet holders accepting a 0.0730-inch straight cylindrical shank. Part of the Series R10CO-R15CO-R18CO cobalt jobber line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a drill press, hand drill, or CNC spindle using a chuck rated for the shank diameter. Secure the shank fully in the chuck jaws and verify concentricity before running at speed. Use appropriate cutting fluid or oil when drilling steel to extend tool life and maintain hole tolerance. Cobalt bits can be resharpened but require a drill grinder set to the correct 135-degree included angle.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 49\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0730 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: 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\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0730 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 14xD\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, Stainless, Cast Iron, Non-Ferrous, High-Temp Alloys (P, M, K, N, S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose, Heavy Duty Grade\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NAS 907\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R10CO-R15CO-R18CO\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\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 5997888\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51691272929586,"sku":"5997888","price":51.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fd6336b34c1d0261f5eb3b4d3e77059f_9b45182f-551b-4bdb-8e8c-9aff0557865c.jpg?v=1788282527","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5997888-cobalt-jobber-drill-no-49","provider":"Voomi Supply","version":"1.0","type":"link"}