{"product_id":"hertel-42094-cobalt-jobber-drill-bit-9-mm-135-degree","title":"Hertel 42094 Cobalt Jobber Drill Bit 9 Mm 135 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 42094 is a cobalt jobber-length drill bit designed for drilling into hard, abrasive, and high-strength materials in demanding shop and field applications. Built from M35 cobalt steel and finished with an oxide and gold coating, it runs cooler and resists wear longer than standard high-speed steel bits. The 135-degree split point self-centers on contact, reducing the need for a center punch and minimizing walking on hard surfaces. At 4.921 inches overall length with a 3.189-inch spiral flute, it fits standard jobber-length drill chucks and works in both benchtop drill presses and handheld drill motors.\u003c\/p\u003e\u003cp\u003eThis bit is suited for metalworking trades, maintenance technicians, and fabricators who regularly drill stainless steel, alloy steel, cast iron, titanium, and other tough materials. The right-hand cutting direction and regular spiral flute geometry make it compatible with conventional drill press setups and CNC drilling operations. It is sold individually and is appropriate for production drilling where a consistent, accurate 9 mm hole is required without pilot drilling on clean metal surfaces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt steel construction for extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eOxide and gold coating reduces friction and heat buildup at the cutting edge\u003c\/li\u003e\n\u003cli\u003e135-degree split point self-centers and reduces thrust force required\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute evacuates chips efficiently during through-hole drilling\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard 3-jaw drill chucks without an adapter\u003c\/li\u003e\n\u003cli\u003eJobber-length geometry balances reach and rigidity for general-purpose drilling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber-length drill bit compatible with standard 3-jaw drill chucks accepting a straight cylindrical shank in the 9 mm to 10 mm drill bit size range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the workpiece firmly before drilling and confirm the drill chuck is tightened on the straight shank with a chuck key before applying power. Use cutting fluid or coolant appropriate for the base material to extend bit life, particularly when drilling stainless or alloy steels. Inspect the cutting edges for chipping or wear before each use and replace the bit if the split point is damaged, as a worn point increases thrust and reduces hole accuracy. This bit does not support coolant-through application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 9 mm (0.3543 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 125 mm (4.921 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 81 mm (3.189 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, 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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M35 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\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\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: 42094\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732836811058,"sku":"42094","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d9a6912dc5697bf3502402dde2f81054.jpg?v=1788747374","url":"https:\/\/voomisupply.com\/products\/hertel-42094-cobalt-jobber-drill-bit-9-mm-135-degree","provider":"Voomi Supply","version":"1.0","type":"link"}