{"product_id":"hertel-42294-cobalt-jobber-drill-bit-10-mm-135-degree","title":"Hertel 42294 Cobalt Jobber Drill Bit 10 Mm 135 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 42294 is a cobalt jobber-length drill bit designed for high-performance drilling in tough materials including stainless steel, alloy steel, and other hard metals. Built from M35 cobalt high-speed steel, this bit delivers superior heat resistance compared to standard HSS tooling, making it well-suited for production and maintenance drilling where tool life matters. The 135-degree split point reduces walking and requires less feed force at entry. With a bright, uncoated finish and a 10 mm cutting diameter, the 42294 is a straight-cylindrical shank bit compatible with standard drill chucks. Installed by machinists and maintenance professionals in shop and field environments.\u003c\/p\u003e\n\u003cp\u003eThis bit is appropriate for use in handheld drills, drill presses, and CNC equipment where a 10 mm hole is required. The jobber-length format — with an overall length of 133 mm and a flute length of 87 mm — provides a practical reach-to-stiffness ratio for general-purpose work. The right-hand cutting direction and two-flute spiral configuration support efficient chip evacuation in both through-hole and blind-hole applications across ferrous and non-ferrous base materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM35 cobalt HSS construction provides elevated heat and wear resistance for hard-material drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust force and minimizes bit walking on entry\u003c\/li\u003e\n  \u003cli\u003eTwo-flute regular spiral design promotes consistent chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard three-jaw drill chucks\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish — no coating buildup to affect dimensional accuracy\u003c\/li\u003e\n  \u003cli\u003eJobber-length format balances reach and rigidity for general shop and maintenance use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber-length replacement or stock bit for applications requiring a 10 mm cutting diameter, fitting within the 10.00 mm to 12.50 mm drill bit size range, and compatible with any drill chuck or collet accepting a straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with rotating tool safety. Secure the shank fully in the chuck and verify runout before drilling. Always reduce spindle speed and increase feed pressure when drilling hardened or stainless materials to avoid work-hardening. Use appropriate cutting fluid to extend tool life and manage heat buildup during extended cuts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 10 mm (0.3937 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 133 mm (5.236 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 87 mm (3.4252 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 Grade\u003c\/strong\u003e: M35 Cobalt HSS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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\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\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: 42294\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51738771554610,"sku":"42294","price":20.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/70294c830d6c6afe74dadce1edba5977.jpg?v=1788804228","url":"https:\/\/voomisupply.com\/products\/hertel-42294-cobalt-jobber-drill-bit-10-mm-135-degree","provider":"Voomi Supply","version":"1.0","type":"link"}