{"product_id":"precision-twist-drill-5999442-3-8-in-screw-machine-drill-bit","title":"Precision Twist Drill 5999442 3\/8 in Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5999442 is a screw machine length drill bit designed for high-performance metal drilling applications. It measures 0.375 inches (3\/8 inch) in diameter with an overall length of 3.125 inches and a flute length of 1.8125 inches. The bit is manufactured from high speed steel with a coated finish and features a 135-degree split point that reduces walking and decreases the thrust needed to start a hole. A tapered web with web thinning improves chip evacuation and cutting efficiency, making this bit well suited for demanding production environments where speed and hole quality matter.\u003c\/p\u003e\u003cp\u003eThis screw machine length bit is rated for cutting titanium as its primary workpiece material, placing it in the high-performance category for difficult-to-machine metals. The shorter flute-to-diameter ratio of 2.5xD and straight-cylindrical shank are standard for screw machine and turret lathe setups, as well as drill press and CNC applications where rigidity and repeatability are priorities. The right-hand spiral flute geometry and heavy-duty grade designation make it appropriate for production machinists, tool-and-die shops, and maintenance professionals working with hard or abrasive materials. It meets ANSI and NAS 907 standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point reduces drill walking and lowers feed force required to start a hole\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web construction improves chip flow and reduces heat buildup\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with coated finish for extended tool life in hard materials\u003c\/li\u003e\n\u003cli\u003eScrew machine length profile (2.5xD flute ratio) provides added rigidity over jobber-length bits\u003c\/li\u003e\n\u003cli\u003eRated for titanium as primary workpiece material — suitable for other hard and abrasive metals\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and NAS 907 standards for dimensional and performance consistency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in screw machines, turret lathes, drill presses, and CNC machining centers that accept a straight-cylindrical shank. The R40C series targets high-performance applications involving titanium and similarly demanding workpiece materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or tool-and-die professionals familiar with proper speeds, feeds, and cutting fluid practices for high speed steel tooling. Secure the straight-cylindrical shank firmly in a compatible chuck before operation, and verify chuck runout is within acceptable tolerances to avoid premature bit wear. Always power down and de-energize the machine before changing tooling. Refer to the machine manufacturer guidelines and applicable ANSI safety standards for appropriate operating parameters.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.8125 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\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\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\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eWeight\u003c\/strong\u003e: 0.43 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: 5999442\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51692930138418,"sku":"5999442","price":17.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c453ca492e6b3999ba3e6ecd22e54f47.jpg?v=1788305108","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999442-3-8-in-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}