{"product_id":"hertel-c-e07-0522-aircraft-extension-drill-bit-size-5","title":"Hertel C.E07.0522 Aircraft Extension Drill Bit Size 5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL C.E07.0522 is a cobalt aircraft extension drill bit built for deep-reach drilling applications where standard-length bits cannot access the work. Sized to wire gauge number 5 (0.2055 inches decimal), it features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard or curved surfaces. The straw finish is a heat-treatment indicator consistent with high-speed cobalt steel. At 12 inches overall length with a 2.5-inch spiral flute, this bit is designed for licensed aircraft maintenance technicians, machinists, and skilled tradespeople working in confined or deep-reach locations.\u003c\/p\u003e\n\u003cp\u003eAircraft extension bits like the C.E07.0522 are used in aerospace maintenance, structural fabrication, and general metalworking where drilling through layered materials or deep cavities is required. The cobalt construction handles harder alloys including stainless steel and titanium-bearing materials better than standard high-speed steel bits. The straight cylindrical shank seats in standard drill chucks without adapters. This bit meets NAS 907 standards, which govern aircraft drill bit geometry and performance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire size number 5 (0.2055 inches decimal) straight cylindrical shank for standard chuck compatibility\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web-thinned, tapered web for self-centering entry and reduced thrust load\u003c\/li\u003e\n  \u003cli\u003eCobalt tool material for superior heat resistance and extended tool life in hard and abrasive metals\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length enables deep-reach and offset drilling in confined airframe and structural applications\u003c\/li\u003e\n  \u003cli\u003e2.5-inch spiral flute with right-hand cutting direction for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraw finish and NAS 907 compliance confirm aerospace-grade geometry and heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit suitable for use in aerospace maintenance, structural metalworking, and precision drilling applications requiring a wire size number 5 diameter and extended reach. Conforms to NAS 907 standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a standard drill chuck that accepts a 0.2055-inch straight cylindrical shank. Secure the workpiece firmly before drilling to prevent movement, especially when using extension-length bits where lateral flex can occur. Use appropriate cutting fluid or lubricant when drilling hard alloys to extend tool life and maintain dimensional accuracy. Wear appropriate personal protective equipment including eye protection when operating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: Number 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.2055 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.5 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eShank Diameter\u003c\/strong\u003e: 0.2055 inches\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: C.E07.0522\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51752236548402,"sku":"C.E07.0522","price":37.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/39d604765b7a3b9d83516a7e2fe2bff2.jpg?v=1788926820","url":"https:\/\/voomisupply.com\/products\/hertel-c-e07-0522-aircraft-extension-drill-bit-size-5","provider":"Voomi Supply","version":"1.0","type":"link"}