{"product_id":"hertel-4139697-cobalt-jobber-drill-bit-9-32-inch","title":"Hertel 4139697 Cobalt Jobber Drill Bit 9\/32 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 4139697 is a cobalt jobber-length drill bit designed for high-performance holemaking in ferrous and hard metals. It features a 135-degree split point that reduces walking at contact and requires less thrust to start a hole. The TiAlN coating increases surface hardness and heat resistance, extending tool life in demanding cutting applications. With an overall length of 4.25 inches and a flute length of 2.9375 inches, this bit fits standard drill chucks and drill presses used in metalworking and fabrication environments. It is suited for machinists, tool-and-die trades, and general metal fabrication shops.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is sized at 9\/32 inch (0.2812 inch decimal) with a straight cylindrical shank of matching diameter. It is intended for use in ferrous metals, stainless steel, cast iron, and other hard materials where standard high-speed steel bits lose edge quickly. The regular spiral flute promotes chip evacuation during through-hole and blind-hole drilling. The web-thinned, tapered web geometry reduces cutting resistance and helps maintain accuracy at the point. Typical applications include production drilling, maintenance and repair operations, and precision metalwork on manual or CNC-equipped drill presses and mills.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction with Max Output grade rating for extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating improves heat resistance and surface hardness during high-speed cutting\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust requirements and prevents bit walking at hole start\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web design lowers cutting resistance and maintains point integrity\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute with right-hand cutting direction promotes consistent chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard three-jaw chucks without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber-series drill bit for use in standard drill chucks accepting a 9\/32 inch straight cylindrical shank, compatible with drill presses, hand drills, and CNC spindles configured for that shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or metal fabrication tradespeople. Secure the shank fully in the chuck and verify runout before cutting. Coolant-through capability is not supported on this bit, so apply cutting fluid externally when drilling hard or stainless alloys to manage heat buildup. Never force a dull bit — replace when point geometry shows visible wear to avoid workpiece damage or bit breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 9\/32 inch (0.2812 inch decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 9\/32 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Jobber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.68 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\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: 4139697\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727225749810,"sku":"4139697","price":22.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ae057c33dd47f90b7b2045f5c0d0b5ed.jpg?v=1788674980","url":"https:\/\/voomisupply.com\/products\/hertel-4139697-cobalt-jobber-drill-bit-9-32-inch","provider":"Voomi Supply","version":"1.0","type":"link"}