{"product_id":"precision-twist-drill-5999448-screw-machine-drill-bit","title":"Precision Twist Drill 5999448 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999448 is a screw machine length drill bit designed for high-performance drilling in demanding trade and industrial applications. Built from high speed steel with a coated finish, this bit features a 135-degree split point and a web-thinned, tapered web configuration that reduces thrust and improves centering on entry. The straight-cylindrical shank measures 0.4375 inches in diameter with an overall length of 3-7\/16 inches and a flute length of 2-1\/16 inches. The right-hand spiral flute design promotes clean chip evacuation. Manufactured to ANSI and NAS 907 specifications, this is a heavy-duty bit suited for machinists, pipefitters, and fabricators working in production or repair environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for primary use in titanium workpieces, making it appropriate for aerospace fabrication, industrial maintenance, and other applications where difficult-to-machine materials are common. The screw machine length format provides added rigidity over jobber-length bits, which is particularly useful in drill press and turret lathe setups where shorter reach reduces deflection and improves hole accuracy. The Series R40C designation places this bit within a heavy-duty, high-performance product line built to ANSI and NAS standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point reduces walking and improves self-centering on hard materials\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web lowers cutting thrust and extends tool life in tough alloys\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish for improved wear resistance\u003c\/li\u003e\n  \u003cli\u003eScrew machine length for increased rigidity and reduced deflection vs. jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 specifications for dimensional consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling titanium as the primary workpiece material; also suitable for general high-performance drilling applications where a heavy-duty screw machine length bit is required. Compatible with standard drill presses, turret lathes, and CNC equipment accepting a straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or trade professionals familiar with cutting tool setup and safe machine operation. Secure the straight-cylindrical shank firmly in the chuck or collet before beginning any cut, and confirm that the machine is powered off and locked out before tooling changes. Use appropriate cutting fluid or coolant for titanium workpieces to manage heat buildup, as this bit does not feature through-coolant capability. Follow applicable ANSI machine safety standards and shop-specific procedures for rotating equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 0.4375 inches (7\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-1\/16 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\u003ePoint Type\u003c\/strong\u003e: Split\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: 0.64 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: 5999448\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51720544846130,"sku":"5999448","price":21.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7db3d1d40fd6b0b5fdee6962de609ca7.jpg?v=1788565877","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999448-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}