{"product_id":"hertel-42112-cobalt-jobber-drill-bit-14-5-mm-135-degree","title":"Hertel 42112 Cobalt Jobber Drill Bit 14.5 Mm 135 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 42112 is a cobalt jobber length drill bit designed for drilling through hard and abrasive materials including stainless steel, high-temperature alloys, and hardened tool steels. Built from M35 cobalt steel and finished with an oxide and gold coating, this bit handles the heat and wear that standard high-speed steel bits cannot. At 14.5 mm (0.5709 inches) in diameter with a 135-degree split point, it starts on contact without walking, reducing the need for center punching. With an overall length of 169 mm (6.65 inches) and a flute length of 114 mm (4.49 inches), it suits a wide range of jobber-length drilling applications in machine shops, fabrication, and field service work.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for metalworking applications where tool longevity and cutting performance in tough materials are priorities. It fits standard drill chucks on bench presses, drill presses, and CNC machining centers that accept straight cylindrical shanks. Machinists, tool-and-die technicians, and metal fabricators commonly select cobalt jobber bits like the 42112 for production runs in stainless, Inconel, and other difficult-to-machine alloys. The right-hand spiral flute with regular spiral geometry ensures consistent chip evacuation during through-hole and blind-hole operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt steel construction for superior heat resistance and extended tool life in hard metals\u003c\/li\u003e\n\u003cli\u003e135-degree split point starts on contact and reduces thrust force during entry\u003c\/li\u003e\n\u003cli\u003eOxide and gold coating provides lubricity and corrosion resistance during cutting\u003c\/li\u003e\n\u003cli\u003eRegular right-hand spiral flute promotes reliable chip evacuation in deep holes\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n\u003cli\u003e5xD flute-to-diameter ratio provides jobber-length reach for most general metalworking setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-length drill bit for use in any drill press, bench machine, or CNC machining center with a chuck capacity accepting straight cylindrical shanks in the 12.50 mm to 15.00 mm (0.5000 to 0.6500 inch) size range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or metalworking technicians familiar with proper feed and speed selection for cobalt drill bits. Secure the shank fully in the chuck and verify runout before drilling production parts. Appropriate cutting fluid or coolant is recommended for extended tool life when drilling ferrous alloys, even though this bit does not support coolant-through delivery. Eye protection and machine guarding in compliance with applicable OSHA and ANSI machining safety standards must be maintained at all times.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 14.5 mm (0.5709 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 169 mm (6.65 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 114 mm (4.49 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\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\u003eMaterial\u003c\/strong\u003e: Cobalt (M35)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide and Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.18 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\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: 42112\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51733508161842,"sku":"42112","price":45.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/242a2933d826232d03f6a4d2dfa2e4a8.jpg?v=1788755986","url":"https:\/\/voomisupply.com\/products\/hertel-42112-cobalt-jobber-drill-bit-14-5-mm-135-degree","provider":"Voomi Supply","version":"1.0","type":"link"}