{"product_id":"hertel-42102-cobalt-jobber-drill-bit-11-5mm-135-deg","title":"Hertel 42102 Cobalt Jobber Drill Bit 11.5mm 135 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 42102 is a cobalt jobber length drill bit designed for drilling through hard metals, stainless steel, and high-temperature alloys where standard high-speed steel bits fail prematurely. Built from M35 cobalt steel and coated with an oxide and gold finish, this bit holds cutting edge hardness under elevated heat generated by tough materials. It measures 11.5 mm (0.4528 inches) in diameter with an overall length of 5.59 inches and a flute length of 3.70 inches. The 135-degree split point reduces walking on entry and lowers required thrust, making it well suited for hand-fed and machine-fed drilling operations. Machinists, fabricators, and maintenance technicians install this bit in drill presses, CNC machines, and hand drills.\u003c\/p\u003e\n\u003cp\u003eThis bit is used in metal fabrication shops, maintenance and repair operations, and production machining environments. It handles ferrous and non-ferrous materials, with the cobalt construction making it particularly effective on hardened steel, cast iron, titanium, and stainless alloys. The straight cylindrical shank fits standard drill chucks without adapters. The regular spiral flute geometry provides efficient chip evacuation in through-hole and blind-hole applications. It is sold individually and intended for professional machining and fabrication use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM35 cobalt steel construction for heat resistance and edge retention in hard materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust requirements and eliminates center punch marking on most metals\u003c\/li\u003e\n  \u003cli\u003eOxide and gold coating provides added lubricity and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute with 2 flutes promotes consistent chip clearance\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank seats securely in standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design suits standard bench and portable drilling setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber length replacement drill bit for use in drill presses, CNC drilling machines, and hand drills accepting straight cylindrical shank bits in the 0.4000 to 0.5000 inch (10.00 to 12.50 mm) size range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall into a properly rated drill chuck and tighten securely before operation. Secure workpieces with clamps or a vise before drilling to prevent movement and bit breakage. Use cutting fluid or coolant on the workpiece surface when drilling hard alloys to extend bit life, even though this bit does not have internal coolant-through channels. Inspect the cutting edges for wear before each use and replace the bit if chipping or dulling is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 11.5 mm (0.4528 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.59 inches (142 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.70 inches (94 mm)\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt Steel, 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\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: 0.14 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 42102\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51728701063474,"sku":"42102","price":25.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2310d0d444199b20aa852b3c99b7f6ff.jpg?v=1788695237","url":"https:\/\/voomisupply.com\/products\/hertel-42102-cobalt-jobber-drill-bit-11-5mm-135-deg","provider":"Voomi Supply","version":"1.0","type":"link"}