{"product_id":"hertel-c-e06-0431-aircraft-extension-drill-bit-18-cobalt","title":"Hertel C.E06.0431 Aircraft Extension Drill Bit 18 Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL C.E06.0431 is a cobalt aircraft extension drill bit designed for drilling in tight or deep-access locations where a standard-length bit cannot reach. Built to a 135-degree split point with web thinning, it self-centers on contact and reduces the thrust required to start a hole. The straight cylindrical shank measures 0.1695 inches in diameter, matching the wire gauge size 18 decimal equivalent. The straw finish indicates the cobalt steel was heat-treated during manufacture. This bit is suited for HVAC sheet metal work, aircraft maintenance, and general metalworking applications where an extended reach is required. Right-hand cutting spiral flutes clear chips efficiently through a 2.125-inch flute length.\u003c\/p\u003e\u003cp\u003eThis aircraft extension drill bit is intended for use in hand-held or drill-press applications where extended reach into confined spaces is needed. Common applications include drilling through structural sheet metal, HVAC ductwork flanges, aluminum panels, and light steel assemblies. The cobalt construction provides heat resistance suitable for harder alloys and stainless steel. The 6-inch overall length gives the technician added reach compared to a jobber-length bit, making it practical for automotive, aerospace ground support, and mechanical contractor work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material with straw finish for heat resistance and durability in ferrous and hard alloys\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning for self-centering and reduced entry thrust\u003c\/li\u003e\n\u003cli\u003e6-inch overall length for extended reach into confined or deep-access locations\u003c\/li\u003e\n\u003cli\u003eSpiral flute with right-hand cutting direction for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank at 0.1695 inches diameter for standard chuck compatibility\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 standard for aircraft extension drill bits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit compatible with standard 3-jaw drill chucks accepting a 0.1695-inch straight cylindrical shank. Suitable for use in hand drills, right-angle drills, and drill presses.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified technicians familiar with metal drilling procedures. Secure the workpiece before drilling and ensure the chuck is fully tightened on the shank before operation. Use appropriate cutting fluid when drilling hardened steels or stainless to extend bit life and manage heat buildup. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.1695 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1695 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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\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\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\u003eStandard\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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.E06.0431\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51735305388338,"sku":"C.E06.0431","price":17.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e36d4276a814898bd6e27544eb6dd9f1.jpg?v=1788771681","url":"https:\/\/voomisupply.com\/products\/hertel-c-e06-0431-aircraft-extension-drill-bit-18-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}