{"product_id":"precision-twist-drill-5998582-9-16-in-hss-screw-machine-drill","title":"Precision Twist Drill 5998582 9\/16 in Hss Screw Machine Drill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5998582 is a screw machine length drill bit designed for high-performance metal drilling in professional shop and field environments. Built from high speed steel with a bright, uncoated finish, it measures 9\/16 inch (0.5625 inches) in diameter and carries a 118-degree standard point angle. The web-thinned, tapered web configuration reduces entry resistance and improves chip clearance. At 4 inches overall length with a 2.5 inch spiral flute, this bit fits standard drill presses, lathes, and CNC setups where stub-length rigidity is preferred over jobber-length reach. Machinists, tool and die techs, and metalworking professionals are the primary users.\u003c\/p\u003e\u003cp\u003eThis bit is rated for use on titanium as its primary workpiece material, making it well suited for aerospace component work, precision machining shops, and industrial maintenance applications where difficult-to-machine alloys are encountered. The Series R40 designation identifies it within the PRECISION TWIST DRILL high-performance line. Its straight-cylindrical shank seats in standard three-jaw chucks without adapters, and the regular spiral flute pattern handles a broad range of feed rates. It conforms to ANSI standards for screw machine length drills.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e9\/16 inch (0.5625 inches) diameter with a 118-degree standard point angle for general-purpose entry geometry\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web reduces thrust and improves penetration on hard alloys including titanium\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction provides heat resistance through extended cutting cycles\u003c\/li\u003e\n\u003cli\u003eScrew machine length body (4 inches overall) delivers added rigidity compared to jobber-length bits\u003c\/li\u003e\n\u003cli\u003eSpiral flute at 2.5xD flute-to-diameter ratio promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish allows easy visual inspection for wear and re-sharpening\u003c\/li\u003e\n\u003cli\u003eANSI-compliant Series R40 — meets dimensional standards for interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use screw machine drill bit for standard three-jaw chucks and collet holders accepting a straight-cylindrical shank at 9\/16 inch diameter, conforming to ANSI screw machine length specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists and metalworking technicians. Secure the straight-cylindrical shank fully in a three-jaw chuck or collet before operation, and verify runout before engaging the workpiece. Power down and de-energize the machine spindle before changing bits. Follow applicable ANSI B11 machine tool safety standards and shop-specific PPE requirements 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 Diameter\u003c\/strong\u003e: 9\/16 inch (0.5625 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.5 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eSeries\u003c\/strong\u003e: R40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\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: 5998582\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51716023058738,"sku":"5998582","price":48.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e104434e0ae56abc35f07d95e958052a.jpg?v=1788521147","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998582-9-16-in-hss-screw-machine-drill","provider":"Voomi Supply","version":"1.0","type":"link"}