{"product_id":"precision-twist-drill-5995998-cobalt-drill-bit-7-16-in","title":"Precision Twist Drill 5995998 Cobalt Drill Bit 7\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5995998 is a screw machine length cobalt drill bit designed for high-performance drilling in hard and tough materials. Built to Series M40CO standards, it features a 135-degree split point that reduces walking and requires less feed pressure at entry. The straight-cylindrical shank seats securely in standard drill chucks. At 0.4375 inches (7\/16 inch) in diameter with a 2-1\/16-inch flute length and 3-7\/16-inch overall length, this bit is suited for close-clearance and short-reach drilling operations. The web-thinned, tapered web design improves chip evacuation and reduces thrust. Licensed machinists, maintenance mechanics, and metalworking tradespeople are the primary installers and users.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for drilling hard metals and difficult workpiece materials where standard high-speed steel bits wear prematurely. The cobalt construction provides heat resistance during sustained cutting in steel alloys, stainless steel, cast iron, and similarly hard materials. The screw machine length format makes it well suited for drill press work, CNC operations, and hand-held drilling where stub-length rigidity is needed but a jobber-length bit is too long. A 2.5xD flute-to-diameter ratio supports efficient chip clearance in moderate-depth holes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction (M40 material grade) for heat and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces bit walking and lowers entry thrust requirements\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web improves chip flow and reduces cutting resistance\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length at 3-7\/16 inches overall for added rigidity in tight setups\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute with 2.5xD ratio for effective chip evacuation\u003c\/li\u003e\n  \u003cli\u003eANSI specification compliance for dimensional consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a heavy-duty OEM-style screw machine length drill bit in the M40CO series, compatible with standard drill chucks and collet holders accepting a straight-cylindrical 7\/16-inch shank. Suitable for use in drill presses, CNC machining centers, and hand-held drilling equipment. Rated for primary workpiece materials classified as hard material per ANSI standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and operated by machinists, maintenance mechanics, or metalworking tradespeople. Secure the shank fully in a properly sized drill chuck or collet before operation and verify the workpiece is firmly clamped or fixtured. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not support through-spindle coolant delivery. Follow shop safety protocols including eye protection and proper spindle speed selection for the workpiece material and bit diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 7\/16 inch (0.4375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-1\/16 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\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: M40CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003ePoint Type\u003c\/strong\u003e: Split\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.083 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: 5995998\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51723203445042,"sku":"5995998","price":33.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d0fc5f6262074872d44705f45fbae1b7_81de170e-485d-4ef5-bac8-e7f433703451.jpg?v=1788601927","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5995998-cobalt-drill-bit-7-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}