{"product_id":"hertel-42042-cobalt-jobber-drill-bit-35-64-in-135-deg","title":"Hertel 42042 Cobalt Jobber Drill Bit 35\/64 in 135 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 42042 is a cobalt jobber-length drill bit designed for high-speed drilling in hard and abrasive materials. Built from cobalt steel with an oxide and gold coating, this bit resists heat buildup and extends tool life compared to standard HSS alternatives. The 135-degree split point reduces walking on entry and requires less downside pressure to start a hole without a center punch. At 6.625 inches overall length with a 4.8125-inch flute length, the 42042 handles standard jobber-depth applications across a wide range of metalworking tasks. It is suited for machinists, maintenance technicians, and metalworking tradespeople working in production or field environments.\u003c\/p\u003e\u003cp\u003eThis drill bit is sized at 35\/64 inch (0.5469 inch decimal) and is intended for drilling operations in stainless steel, hardened steel, cast iron, titanium alloys, and other tough materials that quickly degrade standard HSS bits. The right-hand spiral flute and straight cylindrical shank make it compatible with standard drill chucks and milling setups. The regular spiral type and 5xD flute-to-diameter ratio make it appropriate for general-purpose jobber-depth through-holes in both manual and CNC-assisted operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt steel construction with oxide and gold coating for heat resistance and extended service life\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces bit walking and lowers required entry force\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with a 2-flute regular spiral for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard 3-jaw drill chucks without adapters\u003c\/li\u003e\n\u003cli\u003e4.8125-inch flute length supports full jobber-depth drilling applications\u003c\/li\u003e\n\u003cli\u003eNo coolant-through design for use in conventional drilling setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber-length drill bit for use with standard drill chucks accepting straight cylindrical shanks in the 0.5000 to 0.6500 inch diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this bit is performed by machining and maintenance trades using standard drill press, hand drill, or CNC equipment. Secure the shank fully in the chuck before operation and verify runout before drilling in precision applications. Use appropriate cutting fluid or coolant for extended drilling runs in hardened or stainless materials to preserve coating and edge life. Inspect the cutting edge for wear or chipping after use in abrasive materials and replace when point geometry degrades.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 35\/64 inch (0.5469 inch)\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 Gold\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003eFlute Length\u003c\/strong\u003e: 4.8125 inches (4-13\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.625 inches (6-5\/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\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.18 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 42042\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51728505733426,"sku":"42042","price":38.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24a32f617742d84f5c239aa9d0d903d3.jpg?v=1788692331","url":"https:\/\/voomisupply.com\/products\/hertel-42042-cobalt-jobber-drill-bit-35-64-in-135-deg","provider":"Voomi Supply","version":"1.0","type":"link"}