{"product_id":"precision-twist-drill-5995983-cobalt-screw-machine-drill-bit","title":"Precision Twist Drill 5995983 Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5995983 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and abrasive materials. Measuring 5\/16 inch (0.3125 inches) in diameter with a 135-degree split point, this bit delivers fast penetration and reduced walking on entry. The web-thinned, tapered web construction lowers thrust requirements and extends tool life in demanding production and maintenance environments. Machined to ANSI standards and designated as the M40CO series, this is a heavy-duty tool suited for use by machinists, industrial maintenance techs, and trade professionals who regularly work with hard stock.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is built for screw machine length applications where a shorter, more rigid tool reduces deflection and improves hole accuracy. The 2.5xD flute-to-diameter ratio and spiral flute geometry support efficient chip evacuation during drilling. Its straight-cylindrical shank fits standard drill chucks without adapters, making it compatible with benchtop drill presses, hand drills, and CNC drilling setups. The cobalt construction handles hard materials including stainless steel, hardened alloys, and cast iron where high-speed steel bits wear prematurely.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt tool material for durability in hard and abrasive workpiece materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces entry walking and lowers thrust force\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web construction for reduced cutting resistance\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (2-13\/16 inches overall) for improved rigidity and reduced deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut spiral flute with 2.5xD flute ratio for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eANSI-standard construction, M40CO series, heavy-duty grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style screw machine length replacement or production drill bit for use with standard straight-shank drill chucks in hand drills, drill presses, and CNC drilling equipment. Primary workpiece material designation is hard material per manufacturer specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit is performed by machinists and industrial maintenance technicians. Secure the straight-cylindrical shank fully in the drill chuck and verify chuck tightness before operation. Disconnect power to the drilling equipment before changing bits. Do not exceed the rated capacity of the drill press or hand tool being used, and apply appropriate cutting fluid when drilling hard materials to manage heat buildup.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 5\/16 inch (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-5\/8 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\u003eSeries\u003c\/strong\u003e: M40CO\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\u003ePoint Type\u003c\/strong\u003e: Split Point\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\u003eGrade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 5995983\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51706161004850,"sku":"5995983","price":20.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d0fc5f6262074872d44705f45fbae1b7_13b4ea2d-d895-4d55-9be3-fda57dcc38ae.jpg?v=1788432998","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5995983-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}