{"product_id":"precision-twist-drill-5995974-cobalt-drill-bit-43-64","title":"Precision Twist Drill 5995974 Cobalt Drill Bit 43\/64","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5995974 is a screw machine length cobalt drill bit designed for high-performance drilling in hard and tough materials. Measuring 0.6719 inches (43\/64 inch) in diameter with a 135-degree split point, this bit delivers fast, accurate starts without a center punch. The web-thinned, tapered web construction reduces cutting resistance and improves chip evacuation. Built to ANSI standards in the M40CO series, it is suited for machinists, maintenance technicians, and metalworking professionals who need a durable, short-length bit for production or repair drilling applications.\u003c\/p\u003e\u003cp\u003eThis bit is designed for drilling hard metals and difficult workpiece materials where standard high-speed steel bits fall short. The screw machine (stub) length provides increased rigidity compared to jobber-length bits, making it well suited for drill press, CNC, and manual machine tool applications. The 2.5xD flute-to-diameter ratio and spiral flute geometry support efficient chip removal during deep-hole passes. It is a practical choice for shops and field technicians working with stainless steel, hardened alloys, and other demanding materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material rated for high-performance cutting in hard and abrasive metals\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces walking and lowers required feed pressure\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web design improves chip flow and reduces heat buildup\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length increases rigidity and reduces deflection\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, spiral flute with straight-cylindrical shank for standard chuck compatibility\u003c\/li\u003e\n\u003cli\u003eMeets ANSI standards; M40CO series, M40 material grade, heavy-duty classification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use screw machine length drill bit for applications requiring a straight-cylindrical shank cobalt bit in the 0.6000 inch and above diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this drill bit is performed by machinists or maintenance technicians using a drill press, lathe tailstock, or CNC spindle with a compatible chuck or collet sized for the straight-cylindrical shank. Secure the workpiece firmly before drilling and confirm spindle speed is appropriate for the workpiece material and bit diameter. Cutting fluid or coolant is recommended when drilling hard metals to extend tool life and manage heat, even though this bit does not support coolant-through delivery. Inspect the bit for wear or chipping before each use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 43\/64 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.6719 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.875 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: 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\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: 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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 5995974\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51701154152754,"sku":"5995974","price":118.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d0fc5f6262074872d44705f45fbae1b7_534db33d-6d0d-4054-88e2-7a9309155935.jpg?v=1788398918","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5995974-cobalt-drill-bit-43-64","provider":"Voomi Supply","version":"1.0","type":"link"}