{"product_id":"hertel-c-e05-0258-aircraft-extension-drill-bit-no-38","title":"Hertel C.E05.0258 Aircraft Extension Drill Bit No. 38","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL C.E05.0258 is a No. 38 aircraft extension drill bit engineered for deep-reach drilling in tight or recessed locations. Built from high-speed steel with an oxide finish, it runs a 135-degree split point that self-centers on contact, reducing walking on curved or coated surfaces. The bit measures 12 inches in overall length with a 1.4375-inch spiral flute, making it well suited for applications where a standard-length bit cannot reach. Web thinning reduces thrust requirements and helps maintain clean, consistent holes. Licensed technicians and aerospace maintenance pros are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis extension drill bit is intended for general-purpose drilling in aerospace, aviation maintenance, and industrial fabrication environments. The extended reach allows work in aircraft fuselage panels, deep frames, and structural members where access is restricted. The right-hand spiral flute and straight cylindrical shank are compatible with standard drill chucks and pneumatic drill motors commonly used on flight line and in sheet metal shops. It conforms to NAS 907 standards, which govern aircraft extension drill geometry and tolerances.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point for self-centering entry without a center punch\u003c\/li\u003e\n\u003cli\u003e12-inch overall length for deep-reach and restricted-access drilling\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction with oxide finish for wear resistance\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web reduces drilling thrust and heat buildup\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting, 2-flute spiral design for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to NAS 907 aircraft extension drill standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit fitting standard straight cylindrical chuck systems used in aerospace and industrial drilling applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eAircraft extension drill bits are typically installed and operated by aviation maintenance technicians, sheet metal mechanics, and industrial machinists. Secure the straight shank fully in the drill chuck before operation and verify runout before drilling into finished panels. Use appropriate cutting fluid or lubricant when drilling hard alloys to extend tool life. Follow applicable workplace safety and aviation maintenance manual procedures for the specific airframe or structure being worked.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 38\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1015 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: 1.4375 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: 0.1015 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 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\u003eStandard\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 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.E05.0258\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51733157216562,"sku":"C.E05.0258","price":20.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bb755b2f43ecbdae5d1d941a706160c8.jpg?v=1788752054","url":"https:\/\/voomisupply.com\/products\/hertel-c-e05-0258-aircraft-extension-drill-bit-no-38","provider":"Voomi Supply","version":"1.0","type":"link"}