{"product_id":"precision-twist-drill-5996061-cobalt-screw-machine-drill-bit","title":"Precision Twist Drill 5996061 Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5996061 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and abrasive materials. Built to Series M41CO specifications and conforming to ANSI standards, this bit features a 135-degree split point for fast, accurate starting without center-punching. The straight-cylindrical shank seats securely in standard chucks, and the regular spiral flute with a 2.5xD flute-to-diameter ratio clears chips efficiently. At 0.166 inches (wire size 19) in diameter, it is suited for precision work in tight-clearance applications where a jobber-length bit would be impractical.\u003c\/p\u003e\u003cp\u003eThis screw machine length bit is used in metalworking and maintenance environments where stub-length rigidity reduces deflection in short-reach drilling setups. Machinists, tool-and-die technicians, and maintenance mechanics reach for this format when drilling hard ferrous metals, stainless steel, and other difficult workpiece materials in drill presses, CNC machines, and hand-held power tools. The cobalt construction and heavy-duty grade rating make it appropriate for production drilling where standard HSS bits wear prematurely.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt M41 material grade delivers heat resistance for drilling hard metals and alloys\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and eliminates the need for a center punch\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web configuration improves cutting efficiency and reduces walking\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length provides extra rigidity and reduces deflection in short-reach setups\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with regular spiral flute for effective chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI standards for dimensional consistency\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 metalworking applications requiring a 0.166 inch (wire size 19) diameter cobalt bit with a straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with proper tooling setup. Secure the straight-cylindrical shank firmly in the chuck before operation and verify that chuck runout is within acceptable limits to avoid premature bit wear or breakage. Use appropriate cutting fluid or coolant for the workpiece material, and never force the bit at feed rates beyond what the material and machine setup can support.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.166 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 19\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: M41\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: M41CO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.0625 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\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 (Regular)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\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\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\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: 0.042 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: 5996061\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51714497184050,"sku":"5996061","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aa2be07eba6984ccd5f161f94448d961_adc5b51b-65df-4079-96d5-575a5f1ab732.jpg?v=1788502322","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996061-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}