{"product_id":"hertel-c-e13-1111-extra-length-cobalt-drill-bit-7-16","title":"Hertel C.E13.1111 Extra Length Cobalt Drill Bit 7\/16","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL C.E13.1111 is a 7\/16 inch (0.4375 inches) extra length cobalt drill bit designed for demanding drilling applications where standard-length bits fall short. Built from cobalt high-speed steel with a bright\/uncoated finish, it delivers heat resistance and edge retention when cutting through hard or abrasive materials. The 135-degree split-point tip reduces walking at startup and lowers required thrust force, making it a reliable choice for production shops, maintenance crews, and tool-and-die work. The overall length of 8.0 inches and a 5.5-inch flute length provide reach into deep-hole applications that standard drill bits cannot access.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for general-purpose drilling in ferrous metals, stainless steel, cast iron, and hard alloys where cobalt tooling is the preferred grade. The extra length format is commonly used in structural fabrication, heavy equipment maintenance, and industrial production environments where deep bores or offset clearance are required. A two-flute design promotes efficient chip evacuation throughout the full flute length, reducing the risk of bit binding in deep holes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/16 inch diameter (0.4375 inches) cobalt construction for heat resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split-point tip reduces drill walking and required feed pressure\u003c\/li\u003e\n  \u003cli\u003e8.0-inch overall length with 5.5-inch flute length for deep-hole reach\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish — no coating buildup to affect tolerances\u003c\/li\u003e\n  \u003cli\u003eTwo-flute design promotes chip clearance in deep drilling operations\u003c\/li\u003e\n  \u003cli\u003eGeneral-purpose grade suitable for ferrous metals, stainless, and hard alloys\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose extra length drill bit compatible with standard drill chucks and CNC spindles accepting 7\/16 inch shank tooling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is intended for installation by machinists, tool-and-die workers, or maintenance technicians using compatible drill presses, CNC machines, or heavy-duty hand drills. Ensure the chuck or collet is fully tightened and the workpiece is securely fixtured before operation. Cobalt bits should be run with appropriate cutting fluid or coolant when drilling hard materials to extend tool life. Inspect the split point for chipping before use and replace the bit if edge integrity is compromised.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 7\/16 inch (0.4375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 8.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5.5 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.24 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241637\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: C.E13.1111\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732591804722,"sku":"C.E13.1111","price":56.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7b47c78149d508626c74fb5f4b721d74.jpg?v=1788744762","url":"https:\/\/voomisupply.com\/products\/hertel-c-e13-1111-extra-length-cobalt-drill-bit-7-16","provider":"Voomi Supply","version":"1.0","type":"link"}