{"product_id":"precision-twist-drill-5996646-cobalt-drill-bit-0-246in","title":"Precision Twist Drill 5996646 Cobalt Drill Bit 0.246in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5996646 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and difficult-to-machine materials. Built to the M42 cobalt steel material grade and conforming to ANSI standards, this bit delivers the heat resistance and edge retention needed for demanding production environments. The 135-degree split point reduces walking and allows for faster penetration without a center punch. At 0.246 inches in diameter with a 2.5 inches overall length and 1.375 inches flute length, this is a compact, rigid bit suited for close-tolerance stub-length drilling. Machinists, toolmakers, and maintenance technicians working with hardened steels, stainless, and high-alloy materials reach for this grade when standard HSS bits fall short.\u003c\/p\u003e\u003cp\u003eThis bit is intended for screw machine length applications where reduced tool overhang improves rigidity and hole accuracy. The straight-cylindrical shank fits standard drill chucks on drill presses, CNC machining centers, and screw machines. The regular spiral flute geometry and web-thinned, tapered web construction promote chip evacuation and reduce thrust load. It is well suited for drilling hard materials including alloy steels, stainless steel, and other tough workpiece materials in shop, maintenance, or production settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction provides superior heat resistance over standard HSS for hard-material drilling\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and eliminates center-punch requirement on most surfaces\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length design increases rigidity and reduces deflection in tight setups\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web lowers cutting resistance and improves chip flow\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute with 2.5xD flute-to-diameter ratio for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eANSI-conforming dimensions ensure interchangeability with standard toolholding systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style screw machine length drill bit in the M42CO series, compatible with standard straight-shank drill chucks and collet systems accepting 0.246-inch shank diameters.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tool safety. Ensure the drill chuck or collet is fully tightened and the workpiece is securely clamped before starting the spindle. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not have a coolant-through feature. Inspect the cutting edges for chipping or wear before each use and replace the bit if edge integrity is compromised.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.246 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.375 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 (M42 Grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: M42CO\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular 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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material\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\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: 0.042 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: 5996646\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51701013807410,"sku":"5996646","price":17.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/691739fe851d894f4ec47cb5cae18c43_69d74e27-8265-4ff0-80e6-7dbf38d23450.jpg?v=1788396768","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996646-cobalt-drill-bit-0-246in","provider":"Voomi Supply","version":"1.0","type":"link"}