{"product_id":"hertel-c-e05-0992-aircraft-extension-drill-bit-25-64-in-hss","title":"Hertel C.E05.0992 Aircraft Extension Drill Bit 25\/64 in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL C.E05.0992 is a high speed steel aircraft extension drill bit designed for drilling in confined or deep-reach applications where a standard-length bit cannot access the workpiece. The bit measures 25\/64 inch (0.3906 inch) in diameter and runs 12 inches in overall length, giving technicians the reach needed for structural and panel drilling in tight assemblies. A 135-degree split point reduces the thrust required to start the hole and eliminates the need for a center punch on most materials. The spiral flute geometry and web-thinned, tapered web configuration promote chip evacuation and reduce heat buildup during extended cuts. An oxide finish adds a baseline level of surface hardness and corrosion resistance.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for use on aircraft structures, sheet metal assemblies, HVAC ductwork framing, and any trade application requiring extended reach into deep cavities or stacked panels. The straight cylindrical shank seats securely in standard drill chucks and right-angle drill attachments commonly used by sheet metal workers, aircraft mechanics, and industrial maintenance technicians. General-purpose tool performance rating makes it appropriate for aluminum, mild steel, and similar materials encountered in these trades.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point for self-centering starts without a center punch\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length provides extended reach into deep or restricted work areas\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles general-purpose drilling in aluminum, mild steel, and similar metals\u003c\/li\u003e\n  \u003cli\u003e3.75-inch spiral flute length with web-thinned, tapered web for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eOxide finish for added surface hardness and basic corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank compatible with standard drill chucks and right-angle attachments\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction with 2-flute design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit for use with standard drill chucks accepting a 25\/64-inch straight cylindrical shank. Suitable for right-hand drilling operations in aluminum, mild steel, and similar materials on aircraft structures, sheet metal panels, and industrial assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of this bit should be performed by qualified machinists, sheet metal workers, or aircraft maintenance technicians following applicable workplace safety and tool-handling procedures. Secure the shank fully in the drill chuck before operation and verify chuck key is removed prior to starting the drill. Use appropriate cutting fluid or lubricant when drilling ferrous metals to reduce heat buildup and extend bit life. Inspect the cutting edges and web for wear or damage before each use and replace the bit if chipping or excessive wear is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 25\/64 inch (0.3906 inch)\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: 3.75 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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 25\/64 inch (0.3906 inch)\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\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\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\u003eWeight\u003c\/strong\u003e: 2.4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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.E05.0992\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51743427428658,"sku":"C.E05.0992","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e0fe396e2f71191f57ed054bac694d10.jpg?v=1788846925","url":"https:\/\/voomisupply.com\/products\/hertel-c-e05-0992-aircraft-extension-drill-bit-25-64-in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}