{"product_id":"precision-twist-drill-5997921-taper-length-drill-bit","title":"Precision Twist Drill 5997921 Taper Length Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5997921 is a taper length high speed steel drill bit designed for demanding metal drilling applications across a wide range of materials. Built to DIN 340 standards, it features a 135-degree split point for self-centering entry without a center punch, reducing walking on hard or smooth surfaces. The parabolic flute geometry promotes efficient chip evacuation at deeper penetration depths, keeping heat and friction low. At 0.2362 inches (6 mm) in diameter with a straight shank, this bit seats securely in standard drill chucks and CNC tool holders. Installation is handled by machinists, tool-and-die technicians, HVAC fabricators, and general metalworking trades.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is sized at 6 mm (0.2362 inches) diameter and belongs to the QC91PM series, which is optimized for heavy-duty, high-performance drilling. With a flute length of 3-37\/64 inches (91 mm) and an overall length of 5-15\/32 inches (139 mm), it is suited for taper-length drilling where standard jobber bits lack the reach. The 6xD flute-to-diameter ratio supports deeper holes in a single pass. Applicable materials include alloy steel, carbon steel, stainless steel, cast iron, aluminum, brass, bronze, copper, titanium, nickel, magnesium, graphite, tempered steel, and hardened steel.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point for self-centering, no center punch required\u003c\/li\u003e\n  \u003cli\u003eParabolic flute design with web thinning for fast chip evacuation and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel (HSS) construction rated for heavy-duty, high-performance use\u003c\/li\u003e\n  \u003cli\u003eTaper length body (6xD ratio) provides extended reach over standard jobber bits\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish — compatible with cutting oils and coolants for extended bit life\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 340 specification for consistent dimensional accuracy\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 straight-shank drill chucks and CNC machining centers requiring a 6 mm (0.2362 inch) diameter bit conforming to DIN 340. Compatible material applications include 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.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by machinists and metalworking technicians using standard drill presses, lathes, or CNC machining centers. Secure the straight shank fully in the chuck before operation and verify runout before drilling into finished workpieces. No coolant-through capability is present on this model, so apply cutting fluid externally when drilling hardened or stainless steel to manage heat. Always follow shop safety protocols and equipment manufacturer guidelines when operating rotating tooling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.2362 inches (6.00 mm)\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 Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3-37\/64 inches (91.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5-15\/32 inches (139.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2362 inches (6.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 48.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Parabolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length x Diameter Ratio\u003c\/strong\u003e: 6xD\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\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\u003eSeries\u003c\/strong\u003e: QC91PM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 340\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: High\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 5997921\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51723211473202,"sku":"5997921","price":40.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0523b926873e5beee59d705109f2aa85_19a765c1-119b-4948-82d6-cdd4b61276f3.jpg?v=1788601992","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5997921-taper-length-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}