{"product_id":"cleveland-c15266-5-16-in-cobalt-screw-machine-drill-bit","title":"Cleveland C15266 5\/16 in Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C15266 is a screw machine length drill bit designed for high-performance drilling in demanding production and maintenance environments. Built from M42 cobalt high-speed steel, it delivers heat and wear resistance that standard HSS bits cannot match. The 5\/16-inch (0.3125-inch) diameter bit features a 135-degree split point for fast penetration and reduced walking on contact, and a parabolic flute geometry that efficiently evacuates chips during deep-hole drilling. A straight-cylindrical shank ensures secure, concentric seating in standard drill chucks and machine spindles. This bit is suited for machinists, maintenance technicians, and fabricators working with hard or abrasive materials.\u003c\/p\u003e\u003cp\u003eThe C15266 is designed for drilling alloy steels and aluminum in screw machine operations, CNC drilling setups, drill press applications, and general production environments where tool life and accuracy matter. Its shorter screw machine length body provides added rigidity compared to jobber-length bits, reducing deflection on through-holes and blind holes in metalworking applications. Web-thinned geometry at the tip lowers thrust requirements, making it practical for both manual and machine-fed operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for superior heat resistance when drilling alloy steel and aluminum\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces walking and lowers entry thrust\u003c\/li\u003e\n\u003cli\u003eParabolic flute design promotes fast, efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, parallel-web configuration reduces cutting resistance\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard chucks without modification\u003c\/li\u003e\n\u003cli\u003eMeets ASME B94.11M dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a screw machine length replacement drill bit for metalworking applications involving alloy steel and aluminum workpieces, compatible with any drill press, CNC machine, or hand drill equipped with a standard chuck accepting a straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or maintenance technician. Ensure the machine spindle is fully powered down and at rest before inserting or removing the bit from the chuck. Secure the shank firmly to the full depth of the chuck jaws to minimize runout. Follow applicable shop safety standards and manufacturer feed-and-speed recommendations for cobalt tooling when setting up the drilling operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 2.813 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.625 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Parabolic\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: Parallel, 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\u003eTool Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0010 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Alloy Steel, Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2175N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B94.11M\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: 0.02 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: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C15266\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51711601180978,"sku":"C15266","price":198.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2309869b92ee0af058849d85c603124f_a3af307e-0087-4338-b279-13de5091a995.jpg?v=1788477445","url":"https:\/\/voomisupply.com\/products\/cleveland-c15266-5-16-in-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}