{"product_id":"titan-usa-cd50308-cobalt-jobber-drill-bit-letter-h","title":"Titan Usa CD50308 Cobalt Jobber Drill Bit Letter H","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TITAN USA CD50308 is a cobalt jobber-length drill bit designed for demanding metal drilling applications. It carries a Letter H designation, equivalent to 0.2660 inches (17\/64 inch) diameter, and features a 135-degree split point that reduces walking and minimizes the need for a center punch. The oxide and TiN coating improves surface hardness and heat resistance. With a 2-flute right-hand spiral and a straight-cylindrical shank, this bit fits standard drill chucks without adapters. It is suited for shops, maintenance crews, and fabrication trades that regularly work through hard or abrasive materials.\u003c\/p\u003e\u003cp\u003eThis bit is engineered primarily for stainless steel, superalloys, and titanium — materials that generate high heat and work-harden quickly under poorly suited tooling. The cobalt steel construction handles elevated cutting temperatures that would degrade standard high-speed steel bits. The regular spiral and 11xD flute-to-diameter ratio support chip evacuation in deep-hole drilling scenarios. Typical applications include pipe fitting, structural fabrication, aerospace component work, and maintenance drilling in corrosion-resistant alloys. Coolant-through is not supported, so external coolant or cutting oil application at the point is standard practice for these materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point reduces bit walk and decreases entry force on hard metals\u003c\/li\u003e\n\u003cli\u003eCobalt steel construction resists heat buildup when drilling stainless steel, superalloys, and titanium\u003c\/li\u003e\n\u003cli\u003eOxide and TiN dual coating improves surface hardness and extends tool life\u003c\/li\u003e\n\u003cli\u003eRight-hand, 2-flute regular spiral design supports consistent chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 0.2660 inches fits standard 3-jaw drill chucks\u003c\/li\u003e\n\u003cli\u003eMaximum drilling depth of 2.875 inches with a 4.125-inch overall length\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-length replacement drill bit for use in any standard drill chuck accepting a 17\/64-inch straight-cylindrical shank, including bench drill presses, portable electric drills, and CNC drilling setups running Letter H tooling in the CD50 series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist, tool-and-die technician, or qualified maintenance professional should select feed rate and speed appropriate for the workpiece material before use. Power down and de-energize the drill press or machine spindle completely before changing or securing the bit in the chuck. Apply cutting oil or external coolant directly to the drill point when working stainless steel or superalloys to manage heat and prevent work hardening. Inspect the cutting edges and coating for wear or chipping before each use; a damaged split point significantly increases heat and reduces hole quality.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 17\/64 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2660 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide and TiN\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 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.125 inches (4-1\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.875 inches (2-7\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.875 inches (2-7\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2660 inches (17\/64 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.25 inches (1-1\/4 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 11xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.0010 to +0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Margin\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CD50\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: 0.05 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: TITAN USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: CD50308\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TITAN USA","offers":[{"title":"Default Title","offer_id":51730404245810,"sku":"CD50308","price":17.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4b971db25c35015c29deaa330680728e.jpg?v=1788716866","url":"https:\/\/voomisupply.com\/products\/titan-usa-cd50308-cobalt-jobber-drill-bit-letter-h","provider":"Voomi Supply","version":"1.0","type":"link"}