{"product_id":"precision-twist-drill-5998607-screw-machine-drill-bit","title":"Precision Twist Drill 5998607 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5998607 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 web-thinned, tapered web construction for fast penetration and reduced walking on entry. The straight-cylindrical shank seats securely in standard drill chucks. At 0.081 inches in diameter and 1.75 inches overall length, this compact stub-length bit is well suited to close-quarter drilling where a jobber-length bit would be impractical. Licensed machinists, pipefitters, and maintenance mechanics are the primary installers.\u003c\/p\u003e\u003cp\u003eThis drill bit is rated for use on titanium as its primary workpiece material, making it appropriate for aerospace, mechanical, and industrial maintenance work where hard-to-machine materials are encountered. The R41C series follows ANSI and NAS 907 specifications, confirming dimensional and performance compliance for critical applications. The regular spiral flute with a 2.5xD flute-to-diameter ratio promotes efficient chip evacuation at the short flute length of 0.75 inches. Coolant-through capability is not included in this design.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point reduces thrust force and resists walking on hard materials\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web construction improves chip flow and cutting efficiency\u003c\/li\u003e\n\u003cli\u003eHigh speed steel with coated finish extends tool life in abrasive and hard-material applications\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length provides increased rigidity for precision hole location\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute for standard clockwise drilling\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and NAS 907 specifications for dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a screw machine length drill bit for use in standard drill chucks and machine spindles accepting a straight-cylindrical shank, rated for titanium and comparable hard workpiece materials per the R41C series specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is intended for use by machinists, maintenance mechanics, and trade professionals operating drill presses, CNC machines, or hand drills with compatible chuck sizes. Secure the straight-cylindrical shank fully in the chuck before operation and verify spindle speed is appropriate for the workpiece material and bit diameter. Inspect the cutting edges for wear or chipping before each use, and replace the bit rather than regrinding if the split point geometry is compromised. No coolant-through capability is present, so external coolant or cutting fluid should be applied when drilling titanium or other hard alloys.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.081 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: #46\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.75 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\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\u003eTool Performance\u003c\/strong\u003e: High Performance\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: R41C\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: 0.03 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: 5998607\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51702577201458,"sku":"5998607","price":40.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7656fcad3c2a23e399911098dbcca0f0.jpg?v=1788412070","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998607-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}