{"product_id":"precision-twist-drill-5998518-49-64-screw-machine-drill-bit","title":"Precision Twist Drill 5998518 49\/64 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5998518 is a screw machine length drill bit designed for high-performance metal cutting in demanding trade and industrial applications. Manufactured from high speed steel (HSS) with a coated finish, this bit features a 118-degree standard point angle, a web-thinned tapered web for reduced entry force, and a right-hand spiral flute configuration. The straight-cylindrical shank seats securely in standard drill chucks and machine spindles. At 0.7656 inches (49\/64 inch) in diameter with a flute length of 3.25 inches and an overall length of 5.125 inches, it falls within the Series R40 line built to ANSI standards.\u003c\/p\u003e\u003cp\u003eThis bit is rated for primary use on titanium and other hard metals where a high-performance HSS tool is appropriate. The screw machine length format — shorter than jobber length — provides added rigidity and reduced deflection, making it well suited for drill press work, CNC lathe turrets, and multi-spindle screw machine operations. The 2.5xD flute-to-diameter ratio supports efficient chip evacuation in short-hole drilling cycles. It is a single-piece, general-purpose bit appropriate for machinists, tool and die technicians, and maintenance trades working with ferrous and non-ferrous alloys.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e49\/64 inch (0.7656 inch) diameter with a 118-degree standard point angle\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web reduces thrust and improves penetration on hard materials\u003c\/li\u003e\n\u003cli\u003eScrew machine length body provides greater rigidity and reduced runout versus jobber length\u003c\/li\u003e\n\u003cli\u003eHSS construction with coated finish for extended tool life on titanium and similar alloys\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute for consistent chip removal\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and turret holders\u003c\/li\u003e\n\u003cli\u003eManufactured to ANSI standards under Series R40\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit cutting tool for drill presses, CNC lathes, turret machines, and multi-spindle screw machines accepting a straight-cylindrical shank at 0.7656 inches in diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or maintenance technicians familiar with metal cutting operations. Secure the straight-cylindrical shank fully in the chuck or collet before beginning any cut and verify runout with a dial indicator if precision tolerances are required. Always power down and lock out the machine spindle before changing tooling. Follow applicable ANSI and shop-floor safety standards for drilling speed, feed rate, and coolant use when working with titanium or high-strength alloys.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 49\/64\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.7656 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 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\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\u003ePoint Type\u003c\/strong\u003e: Standard\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: R40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\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: 0.5 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: 5998518\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51712778895666,"sku":"5998518","price":82.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92909a9befe97763f9107618415c81ef.jpg?v=1788488547","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998518-49-64-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}