{"product_id":"precision-twist-drill-5998994-drill-bit-0-358-inch-hss","title":"Precision Twist Drill 5998994 Drill Bit 0.358 Inch Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5998994 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 measures 0.358 inches in diameter and carries a 135-degree split-point angle for fast, accurate starts without center-punching. The shortened screw machine length body improves rigidity and reduces deflection in close-quarters or machine-tool setups. Web thinning further reduces cutting force at the tip, making it well suited for production drilling in hard materials. Licensed machinists, toolroom technicians, and maintenance trades typically specify this series for precision hole work.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for primary use in titanium workpieces and is appropriate for CNC drilling centers, drill presses, and manual machine setups requiring a compact, rigid bit. The R42C series is built to ANSI and NAS 907 specifications, confirming dimensional and performance standards recognized across aerospace, industrial, and heavy-duty maintenance environments. The straight cylindrical shank seats cleanly in standard drill chucks and collet systems without modification. With a flute-to-diameter ratio of 2.5xD and a 1.75-inch flute length, chip evacuation stays efficient even at higher feed rates in tough alloys.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.358 inch diameter with letter size T designation for precise hole sizing\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces walking and lowers thrust force on entry\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration improves chip clearance and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eScrew machine length provides increased rigidity versus jobber-length bits in tight setups\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish extends service life in abrasive and hard materials\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 standards for dimensional accuracy and performance grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and production-grade drill bit for use in standard drill chucks and collet holders accepting a straight cylindrical shank in the 0.350 to 0.400 inch diameter range, per the R42C series specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or maintenance technicians familiar with machine tool operation. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck or collet. Secure the shank fully within the chuck jaws or collet to the manufacturer-recommended engagement depth before operating. When drilling titanium or other hard alloys, use appropriate cutting fluid and confirm spindle speed and feed rate are within the tool manufacturer guidance for the material and diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.358 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.0625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.75 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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\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\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\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: R42C\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: 0.39 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: 5998994\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51720894120242,"sku":"5998994","price":19.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a32370f73ab370189511a850ae33344f.jpg?v=1788570626","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998994-drill-bit-0-358-inch-hss","provider":"Voomi Supply","version":"1.0","type":"link"}