{"product_id":"precision-twist-drill-5999444-screw-machine-drill-bit","title":"Precision Twist Drill 5999444 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999444 is a screw machine length drill bit designed for high-performance metal cutting in demanding trade applications. Built from high speed steel with a coated finish, it features a 135-degree split point and web-thinned, tapered web construction that reduces walking and improves penetration on entry. The straight-cylindrical shank measures 5\/16 inch (0.3125 inches) in diameter, and the overall length is 2-13\/16 inches with a 1-5\/8 inch flute length. The right-hand spiral flute geometry follows a regular spiral type and a 2.5xD flute-to-diameter ratio. This bit is rated heavy duty and is sold individually.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is engineered for use on titanium as its primary workpiece material, making it well suited for aerospace, mechanical, and industrial fabrication tasks where hard-material drilling is required. The screw machine length format provides a shorter, more rigid profile than jobber-length bits, which improves accuracy and reduces deflection in close-quarters or high-feed-rate drilling scenarios. Machinists, millwrights, and maintenance technicians working on production or field repair applications will find this format well matched to drill press and CNC spindle use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16 inch (0.3125 inches) diameter with screw machine length profile for improved rigidity\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust force and minimizes center-punching requirements\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web construction improves chip clearance and cutting efficiency\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish for extended tool life on hard materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute for standard drilling operations\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 standards; Series R40C heavy duty classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling titanium and other hard metals; compatible with drill presses, CNC machines, and hand-held drilling equipment fitted with a standard straight-cylindrical shank chuck in the appropriate size range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis drill bit is installed and removed by a licensed machinist or qualified tradesperson using a properly sized chuck. Always secure the workpiece before drilling and confirm the spindle speed is appropriate for the material and bit diameter. Follow applicable ANSI safety standards for rotating tool operation. Inspect the cutting edges and coating for wear before each use and replace the bit if the split point or flute edges show damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.3125 inches (5\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 2.5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R40C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NAS 907\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: 0.27 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 5999444\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51721883058482,"sku":"5999444","price":52.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d7c484e78c4e166ba53111efc7d7e4c4.jpg?v=1788582497","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999444-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}