{"product_id":"precision-twist-drill-5995948-cobalt-screw-machine-drill-bit","title":"Precision Twist Drill 5995948 Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5995948 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and abrasive materials. Built to ANSI standards, this 25\/64 inch (0.3906 inch) diameter bit features a 135-degree split point for fast engagement and reduced walking on entry. The spiral flute geometry runs at a 2.5xD ratio, promoting efficient chip evacuation during drilling. The web-thinned, tapered web construction lowers thrust requirements on tough workpieces. It is suited for machinists, tool-and-die professionals, and maintenance technicians working with hard steels, stainless, and similar difficult-to-machine materials.\u003c\/p\u003e\n\u003cp\u003eThe M40CO series screw machine drill bit is intended for use in drill presses, CNC machining centers, and manual lathes where a stub-length bit provides added rigidity over jobber-length alternatives. The compact screw machine length — 3.25 inches overall — reduces deflection in short-reach applications. This bit is appropriate for production environments and job-shop applications requiring consistent, repeatable hole quality in hard or work-hardened materials. The straight cylindrical shank accepts standard drill chucks without modification.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction rated for drilling hard and abrasive materials including high-alloy and stainless steels\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and eliminates center-punch requirements on most surfaces\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web lowers cutting resistance and improves chip clearance\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length at 3.25 inches overall provides superior rigidity over standard jobber bits\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute with 2.5xD flute-to-diameter ratio for effective chip evacuation\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards; M40 material grade for heavy-duty service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or upgrade for screw machine length drill bits in the 0.3500 to 0.4000 inch decimal diameter range, compatible with any standard drill chuck accepting a straight cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this bit should be performed by machinists or qualified trade professionals familiar with machine tool operation. Secure the shank fully in the drill chuck and verify runout before beginning a cut. Always power down and de-energize the machine before changing tooling. Follow applicable ANSI B11 machine tool safety standards and shop-specific lockout\/tagout procedures when servicing or changing drill bits in production equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Fraction)\u003c\/strong\u003e: 25\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.3906 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\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\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\u003eOverall Length\u003c\/strong\u003e: 3.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.875 inches\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: M40CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\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: 5995948\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51692117360946,"sku":"5995948","price":28.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d0fc5f6262074872d44705f45fbae1b7_fe3df3b2-5457-4e30-acd3-c0c343f58d34.jpg?v=1788293333","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5995948-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}