{"product_id":"precision-twist-drill-5998855-screw-machine-drill-bit","title":"Precision Twist Drill 5998855 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5998855 is a screw machine length drill bit designed for high-performance drilling in tight-clearance applications. Built from high speed steel (HSS) with a bright, uncoated finish, this bit features a 118-degree standard point angle and a regular spiral flute for efficient chip evacuation. The straight-cylindrical shank ensures positive chuck engagement in standard drill chucks and machine spindles. At 0.136 inches in diameter (Wire Size #29) with an overall length of 1-15\/16 inches and a flute length of 15\/16 inches, this bit suits stub-length drilling where rigidity and precision matter. It is installed and used by machinists, maintenance technicians, and trade professionals working with production drilling equipment.\u003c\/p\u003e\u003cp\u003eThis screw machine drill bit is rated for general purpose use and is optimized for drilling titanium as its primary workpiece material, along with other metals common in production and maintenance environments. The R41 series designation places it within Precision Twist Drill's line of web-thinned, tapered-web stub-length bits. The 2.5xD flute-to-diameter ratio provides added stability over standard jobber-length bits, making it well suited for use in drill presses, CNC machining centers, and turret lathes where shorter flute length reduces deflection.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire Size #29 diameter: 0.136 inches for precise hole sizing\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability across metal drilling applications\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web-thinned, tapered-web geometry for improved penetration\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for a wide range of metalworking operations\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length reduces deflection in high-speed production drilling\u003c\/li\u003e\n\u003cli\u003eANSI-specification compliant construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard screw machine drill bit for use in drill presses, CNC machining centers, turret lathes, and hand-held drill motors accepting straight-cylindrical shank bits in the 0.136-inch diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed by machinists and maintenance technicians using standard drill chucks or collet systems. Ensure the machine spindle is fully powered down and locked out before changing bits. Secure the straight-cylindrical shank firmly in the chuck to the full depth of the shank to prevent slippage. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed and feed rate when drilling titanium or hardened metals.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.136 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: #29\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-15\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 15\/16 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: Bright\/Uncoated\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: 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\u003eSeries\u003c\/strong\u003e: R41\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.04167 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 5998855\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51695891513650,"sku":"5998855","price":36.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/09befc906087f203b94f08758ea50c7c.jpg?v=1788339136","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998855-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}