{"product_id":"cleveland-c15931-cobalt-jobber-drill-bit-11-64-in","title":"Cleveland C15931 Cobalt Jobber Drill Bit 11\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C15931 is a cobalt jobber length drill bit designed for demanding metal drilling applications. Built from M42 high-cobalt steel and finished with an oxide coating, this bit delivers the heat resistance and edge retention required when drilling superalloys, stainless steel, and other hard materials. The 135-degree split point reduces walking on contact and allows drilling without a center punch in most applications. With a 3-1\/4 inch overall length and 11\/64 inch diameter, this is a standard jobber form factor suited for use in drill presses, CNC machines, and hand-held power drills across maintenance, fabrication, and mechanical contracting work.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for superalloy and hard-material workpieces, making it a go-to choice for HVAC technicians, pipefitters, millwrights, and general trade professionals who regularly drill into hardened or exotic metals. The fast spiral flute promotes efficient chip evacuation during deep-hole drilling, and the straight-cylindrical shank seats securely in standard 3-jaw chucks. It conforms to ASME B94.11M standards and carries an NAS specification designation, meeting the dimensional and performance requirements expected of heavy-duty tooling in professional shop and field environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt steel construction for superior heat and wear resistance in hard-material drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust force and eliminates walking without a center punch\u003c\/li\u003e\n  \u003cli\u003eOxide coating provides lubricity and additional corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eFast spiral flute with web-thinned, tapered web geometry for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard 3-jaw drill chucks\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B94.11M and NAS specification requirements for heavy-duty jobber drills\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling superalloys and other hard workpiece materials; compatible with any drill press, machining center, or handheld power drill accepting an 11\/64 inch straight-cylindrical shank. Fits Series 3780 application requirements per manufacturer designation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists, tool-and-die workers, or experienced trade professionals familiar with metal-cutting operations. Secure the shank fully in the chuck and verify concentricity before drilling. Use appropriate cutting fluid or coolant to extend bit life when drilling superalloys or stainless steel, as this bit does not support through-coolant. Disconnect and de-energize all equipment before changing bits, and follow applicable OSHA and shop safety protocols for rotating machinery.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 11\/64 inch (0.1719 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/4 inches (3.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-1\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 11\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.1875 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\u003eFlute Type\u003c\/strong\u003e: Spiral (Fast)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt Steel, Grade M42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Superalloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0007 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 3780\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B94.11M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification Designation\u003c\/strong\u003e: NAS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: CLEVELAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C15931\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51711287001394,"sku":"C15931","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/02e10a3a26bea41aaf797649b8e4efcc_05f62a44-3a20-4c8a-8e33-16eda1d56747.jpg?v=1788475336","url":"https:\/\/voomisupply.com\/products\/cleveland-c15931-cobalt-jobber-drill-bit-11-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}