{"product_id":"hertel-c-e07-0185-aircraft-extension-drill-bit-49","title":"Hertel C.E07.0185 Aircraft Extension Drill Bit 49","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL C.E07.0185 is a cobalt aircraft extension drill bit engineered for drilling in tight or deep-reach applications where a standard-length bit cannot access the workpoint. Built to a 135-degree split point with a self-centering tip and web-thinned, tapered web construction, it starts on contact without a center punch and reduces walking on curved or irregular surfaces. The 12-inch overall length gives technicians the reach needed in aerospace, structural, and sheet-metal work. The straw finish provides mild heat and wear resistance. The straight cylindrical shank fits standard drill chucks without adapters. Licensed contractors and aerospace maintenance professionals are the primary installers of this tool.\u003c\/p\u003e\n\u003cp\u003eThis bit is sized to wire gauge 49, equivalent to 0.0730 inches decimal diameter, and is suited for applications requiring consistent, repeatable hole sizing in metals including aluminum, stainless steel, and high-strength alloys. The 1-inch spiral flute length handles chip evacuation efficiently in the materials typical to aircraft skin, structural members, and general fabrication setups. The two-flute right-hand cutting geometry works with standard right-hand drill motors and pneumatic air drills commonly used in aviation maintenance and sheet-metal shops.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for heat resistance and durability in hard metals\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with self-centering tip reduces bit walking and eliminates need for a center punch\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length provides extended reach for deep or obstructed drilling locations\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web lowers thrust requirements and improves chip flow\u003c\/li\u003e\n  \u003cli\u003eStraw finish adds mild surface protection against heat and wear\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 standards for aircraft extension drill bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style aircraft extension drill bit for use in aerospace maintenance, structural fabrication, and sheet-metal applications requiring wire-gauge sizing to number 49 (0.0730 inches) with extended reach.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this bit is performed by aerospace maintenance technicians, machinists, and sheet-metal fabricators. Secure the straight cylindrical shank firmly in a compatible drill chuck rated for the shank diameter before operation. Verify drill motor rotation direction is right-hand before engaging the bit. Use appropriate cutting fluid or lubricant for the base material to extend bit life and maintain hole quality.\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: 49\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.0730 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 inch\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0730 inches\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\u003eSelf-Centering\u003c\/strong\u003e: Yes\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 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: 0.01 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.E07.0185\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":52073085567282,"sku":"C.E07.0185","price":29.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ff3632b5a3748bb0bbdcdcc7a55eb926.jpg?v=1790050249","url":"https:\/\/voomisupply.com\/products\/hertel-c-e07-0185-aircraft-extension-drill-bit-49","provider":"Voomi Supply","version":"1.0","type":"link"}