{"product_id":"hertel-42084-cobalt-jobber-drill-bit-6mm-135-degree","title":"Hertel 42084 Cobalt Jobber Drill Bit 6mm 135 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 42084 is a cobalt jobber-length drill bit designed for general-purpose drilling in tough materials including hardened steels, stainless steel, cast iron, and high-temperature alloys. Built from M35 cobalt steel with an oxide and gold coating, this bit offers improved heat resistance and extended tool life compared to standard high-speed steel alternatives. The 135-degree split point reduces walking and enables faster penetration with less feed pressure. At 93 mm overall length with a 57 mm flute length, it fits standard drill chucks in handheld drills and drill presses. Right-hand spiral flutes clear chips efficiently during through-hole and blind-hole drilling.\u003c\/p\u003e\u003cp\u003eThis bit suits metal fabrication, maintenance and repair, HVAC installation work, plumbing rough-in, and electrical trade drilling tasks where hard metal penetration is required. The straight cylindrical shank accepts standard three-jaw chucks without adapters. Its 5xD flute-to-diameter ratio is typical for jobber-length drilling in ferrous metals. Both professional tradespeople and production shops use this size regularly for conduit knockouts, pipe hangers, bracket work, and general structural drilling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt steel construction provides heat and wear resistance for drilling hard ferrous metals\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces drill walking and decreases required feed force\u003c\/li\u003e\n\u003cli\u003eOxide and gold coating improves surface lubricity and helps resist corrosion\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flutes promote efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard three-jaw drill chucks\u003c\/li\u003e\n\u003cli\u003eJobber-length format offers versatility across handheld drills and stationary drill presses\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct substitute for jobber-length cobalt drill bits in the 6 mm diameter class, fitting any standard drill press or handheld drill with a three-jaw chuck sized to accept a straight cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and used by HVAC technicians, plumbers, electricians, and general metalworkers. Secure the shank firmly in the chuck before operation and verify the workpiece is clamped or fixtured to prevent rotation. Use cutting fluid or coolant when drilling stainless steel or hardened alloys to preserve bit life. Replace the bit if the cutting edges show visible chipping or the coating is fully worn through, as continued use with a dull cobalt bit increases heat and can damage the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 6 mm (0.2362 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 93 mm (3.6614 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 57 mm (2.2441 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\u003eMaterial\u003c\/strong\u003e: Cobalt (M35 grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide and Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, 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\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: 0.14 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: 42084\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732418691378,"sku":"42084","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/75d1ff6bb559afccf0692b8723ff515c.jpg?v=1788742581","url":"https:\/\/voomisupply.com\/products\/hertel-42084-cobalt-jobber-drill-bit-6mm-135-degree","provider":"Voomi Supply","version":"1.0","type":"link"}