{"product_id":"hertel-74130634-cobalt-screw-machine-drill-bit-size-12","title":"Hertel 74130634 Cobalt Screw Machine Drill Bit Size 12","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 74130634 is a cobalt screw machine length drill bit designed for high-speed drilling in tough materials where standard high-speed steel bits fall short. Built to Series HSCO135 standards, it features a 135-degree split point that starts on contact without a center punch and reduces thrust during entry. The overall length is 2.25 inches with a flute length of 1.1875 inches, keeping the setup compact and rigid for short-hole work in drill presses, CNC machines, and production drilling fixtures. Two regular spiral flutes clear chips efficiently, and the web-thinned parallel web reduces cutting resistance. Installation and use are suited to machinists and production shop technicians working in ferrous metals, stainless, and other hard alloys.\u003c\/p\u003e\n\u003cp\u003eScrew machine length bits are the standard choice when rigidity matters more than depth reach. This bit fits applications in production machining, sheet metal fabrication, and general metalworking where a shorter flute length reduces deflection and chatter. The straight cylindrical shank seats cleanly in standard drill chucks and collet holders. At 0.1890 inches diameter (wire gauge size 12), it falls in the 0.1500 to 0.2000 inch drill bit size range, making it a common selection for tapping prep, clearance holes, and close-tolerance drilling in steel and stainless components.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for heat resistance and extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point starts on contact, reducing walking and eliminating the need for a center punch\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web lowers thrust requirements during drilling\u003c\/li\u003e\n  \u003cli\u003eCompact screw machine length body at 2.25 inches OAL improves rigidity and reduces deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting with regular spiral flutes for reliable chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard drill chucks and collet holders without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard-stock drill bit for production machining applications requiring a wire gauge size 12, straight-shank cobalt bit with a 135-degree split point geometry.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a drill press, CNC machining center, or hand drill with a properly sized chuck or collet rated for straight-shank tooling. Secure the shank fully and verify runout before drilling to protect both the bit and the workpiece. Use appropriate cutting fluid or coolant for the base material being drilled, especially when working with stainless steel or other work-hardening alloys. Inspect the cutting edges before each use and remove the bit from service if chipping or wear is visible at the point.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1890 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 Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.1500 to 0.2000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HSCO135\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.18 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: 74130634\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51743373164850,"sku":"74130634","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1e1b323b07b21ba8a50baf4fc440b320.jpg?v=1788846325","url":"https:\/\/voomisupply.com\/products\/hertel-74130634-cobalt-screw-machine-drill-bit-size-12","provider":"Voomi Supply","version":"1.0","type":"link"}