{"product_id":"hertel-c-e07-0326-aircraft-extension-drill-bit-30","title":"Hertel C.E07.0326 Aircraft Extension Drill Bit 30","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL C.E07.0326 is a cobalt aircraft extension drill bit engineered for deep-reach drilling applications where standard-length bits fall short. Built to a 12-inch overall length with a 1.625-inch spiral flute, it accepts a straight cylindrical shank with a 0.1285-inch diameter matching the No. 30 wire gauge designation. The 135-degree split point is self-centering and web-thinned, allowing it to start on a surface without walking and reduce thrust force on entry. A straw finish indicates the cobalt alloy has been heat-treated for improved hardness and wear resistance. Two right-hand spiral flutes evacuate chips efficiently during through-hole drilling. This bit meets NAS 907 standards and is suited for HVAC, avionics, and sheet metal fabrication work.\u003c\/p\u003e\n\u003cp\u003eThis bit is designed for drilling through hard materials including high-strength steel, stainless steel, titanium, and aluminum alloys in aerospace and industrial sheet metal applications. The extended 12-inch reach makes it particularly useful in confined spaces, panel work, and structural assemblies where conventional drill bits cannot access the work zone. HVAC technicians, sheet metal workers, and aircraft maintenance professionals use this type of bit when drilling through structural members, ductwork supports, or multilayer material stacks where penetration depth and bit rigidity are both critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction with straw finish for elevated heat and wear resistance in hard-material drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web thinning for self-centering starts and reduced thrust\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length provides deep-reach access in confined or structural applications\u003c\/li\u003e\n  \u003cli\u003eTwo right-hand spiral flutes promote consistent chip evacuation\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration adds backbone rigidity through the full flute length\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 standard for aircraft-quality drill bit performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit compatible with standard 3-jaw drill chucks and straight-shank collet holders accepting a 0.1285-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists, sheet metal mechanics, or maintenance technicians familiar with rotary cutting tools. Secure the workpiece firmly before drilling and verify chuck grip on the full cylindrical shank. Use appropriate cutting fluid or lubrication when drilling ferrous or hard alloy materials to extend bit life and manage heat buildup. Inspect the cutting edges before each use and do not force a dull or damaged bit.\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: 30\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.1285 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: 1.625 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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1285 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: 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 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\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: 0.04 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.E07.0326\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51731823624498,"sku":"C.E07.0326","price":29.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/95ed8266189743ac2455b38ee1d1a519.jpg?v=1788735331","url":"https:\/\/voomisupply.com\/products\/hertel-c-e07-0326-aircraft-extension-drill-bit-30","provider":"Voomi Supply","version":"1.0","type":"link"}