{"product_id":"precision-twist-drill-5997211-taper-length-drill-bit","title":"Precision Twist Drill 5997211 Taper Length Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5997211 is a taper length, straight-shank drill bit designed for heavy-duty general-purpose drilling across a wide range of metallic and non-metallic materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it features a 135-degree split point for self-centering starts that reduce walking without a center punch. The parabolic flute geometry provides aggressive chip evacuation and reduced friction in deeper holes. Overall length is 6 inches with a 3-5\/8-inch flute length, giving it extended reach compared to a jobber-length bit while maintaining rigidity. Diameter is 13\/64 inch (0.2031 inch decimal). It conforms to ANSI standards and carries a heavy-duty grade rating.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for machine shop, fabrication, maintenance, and field applications where drilling into alloy steel, carbon steel, stainless steel, cast iron, aluminum, brass, bronze, copper, titanium, magnesium, hardened steel, tempered steel, and similar materials is required. The taper length format is commonly chosen when jobber bits lack sufficient flute depth for the application. The parabolic flute profile and web-thinned, tapered web configuration make it well-suited for high-speed drilling in CNC machining centers, drill presses, and hand-held power drills where chip clearance is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point for self-centering starts without a center punch\u003c\/li\u003e\n  \u003cli\u003eParabolic flute profile with 6xD flute-to-diameter ratio for efficient chip evacuation in deep holes\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration reduces thrust and heat buildup\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with bright, uncoated finish for general-purpose metalworking\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank compatible with standard drill chucks; no threaded shank\u003c\/li\u003e\n  \u003cli\u003eANSI-compliant heavy-duty grade rating; right-hand cut\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style taper length drill bit for use in standard 3-jaw drill chucks accepting a 0.2031-inch straight cylindrical shank. Rated for drilling alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, magnesium, magnesium alloy, malleable iron, nickel, stainless steel, steel, tempered steel, titanium, and titanium alloy as specified by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and service drill bits with the machine fully powered down and the chuck key removed from the area before tightening or loosening. Secure the shank fully into the chuck jaws and confirm concentricity before running at speed. Use appropriate cutting fluid or coolant for the material being drilled; this bit does not support coolant-through delivery. Follow shop safety standards and applicable ANSI B11 machine tool safety guidelines when operating drill presses or CNC equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: QC91P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 13\/64 inch (0.2031 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint 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\u003eFlute Length\u003c\/strong\u003e: 3-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Parabolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 6xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2031 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 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: 5997211\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51715253436722,"sku":"5997211","price":38.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/493f31ed2c78d8c96911c7c32cd9970a_c7bf8642-26e1-42d7-acea-7e4fb84d296c.jpg?v=1788511189","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5997211-taper-length-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}