{"product_id":"precision-twist-drill-5998601-screw-machine-drill-bit","title":"Precision Twist Drill 5998601 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5998601 is a screw machine length, high speed steel drill bit designed for high-performance metal drilling applications. It features a 0.161 inch (wire gauge #20) diameter with a 135-degree split point for fast, accurate starting without a center punch. The web-thinned, tapered web construction reduces thrust and improves chip evacuation. At 2.125 inches overall length with a 1.0625 inch flute length, this bit is built for short-hole, high-volume production drilling where rigidity and repeatability matter. It is right-hand cut with a straight-cylindrical shank and a regular spiral flute pattern.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for primary workpiece material in titanium and other hard metals, making it well suited for aerospace, machining, and fabrication environments. The Series R41C designation and NAS 907 specification number indicate conformance to ANSI and NAS standards, which are common requirements in production and defense-adjacent manufacturing settings. The 2.5xD flute-to-diameter ratio provides added chip clearance during short-hole drilling cycles. This bit ships individually and is ordered in multiples of 12.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point for self-centering entry and reduced walking\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web reduces drilling thrust on hard materials\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction rated for titanium and hard metal applications\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (2.125 inches overall) for maximum rigidity in production setups\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 specifications for dimensional and performance standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style screw machine length drill bit for use in standard straight-shank drill chucks and production drilling fixtures accepting a straight-cylindrical shank at 0.161 inch diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and operated by machinists and tool-and-die professionals using compatible drill presses, CNC machining centers, or hand-held pneumatic drills with appropriate chuck capacity. Ensure the workpiece is securely fixtured before drilling to prevent bit walking or breakage. Use appropriate cutting fluid or coolant for titanium and hard metal applications to manage heat buildup. Inspect bit tip for wear or chipping before each use and replace at first sign of dulling to maintain hole quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.161 inches (Wire Gauge #20)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.0625 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eTool Performance\u003c\/strong\u003e: High Performance \/ Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NAS 907\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R41C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 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: 5998601\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51723802935602,"sku":"5998601","price":46.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bbcab4ddc287a9a0e5794b62f2c35057.jpg?v=1788608289","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998601-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}