{"product_id":"precision-twist-drill-5999350-screw-machine-drill-bit","title":"Precision Twist Drill 5999350 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999350 is a screw machine length drill bit designed for high-performance drilling in tough workpiece materials, including titanium. Built from high speed steel with a coated finish, this bit features a 135-degree split point and web-thinned, tapered web construction that reduces thrust and improves centering without a center punch. At 0.246 inches in diameter with an overall length of 2.5 inches and a flute length of 1.375 inches, it fits standard drill chucks and offers the short, rigid geometry that screw machine length bits are known for. It is intended for use by machinists, maintenance technicians, and metalworking tradespeople in production and repair environments.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for drilling non-ferrous and hard metals, with titanium listed as the primary workpiece material. The screw machine length profile provides added rigidity compared to jobber length bits, making it a practical choice for drill press work, CNC setups, turret lathes, and hand-held drilling in tight clearance situations. The right-hand spiral flute with a 2.5xD flute-to-diameter ratio supports efficient chip evacuation during through-hole and blind-hole drilling operations. The Series R42C designation identifies it within the PRECISION TWIST DRILL heavy duty line.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point reduces walking and lowers required feed pressure\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web construction improves cutting efficiency on hard materials\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish for extended tool life\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body provides a rigid, stub profile for accurate hole placement\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute for reliable chip clearance\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 standards; Series R42C heavy duty grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a heavy duty screw machine length drill bit for use on titanium and similar hard metals; compatible with standard straight-cylindrical shank drill chucks across drill presses, CNC machines, turret lathes, and portable drilling equipment accepting a 0.246-inch shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall into a properly rated drill chuck and verify chuck jaw grip on the full cylindrical shank before applying power. Secure workpieces firmly before drilling to prevent movement and tool breakage. Use appropriate cutting fluid or coolant for titanium and hard-metal applications to manage heat buildup. Inspect the cutting edges for wear or chipping before each use and replace the bit if the split point or flute geometry is damaged.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.246 inches (Letter Size D)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.375 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 Point\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\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\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 Bit Grade\u003c\/strong\u003e: Heavy Duty\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: R42C\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: 0.31 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: 5999350\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51691943526706,"sku":"5999350","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cb36cf04875501a3af52332f332dd80b.jpg?v=1788291266","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999350-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}