Hertel C.E03.0218 Aircraft Extension Drill Bit 44 Hss

Product Description

The HERTEL C.E03.0218 is a wire-gauge size 44 aircraft extension drill bit designed for precision drilling in tight and hard-to-reach applications. Built from high-speed steel with an oxide finish, it features a 135-degree split point that reduces walking and allows self-centering entry without a center punch. The extended 6-inch overall length gives technicians the reach needed for airframe, structural, and deep-cavity drilling. Two right-hand spiral flutes with a web-thinned, tapered web configuration promote efficient chip evacuation and reduce cutting resistance. This bit is a general-purpose tool suited for installation and maintenance professionals working with metal substrates.

The C.E03.0218 is intended for use in aircraft maintenance, sheet metal fabrication, and structural drilling scenarios where standard-length bits cannot reach the work surface. Its 0.0860-inch decimal diameter corresponds to wire gauge size 44, making it compatible with close-tolerance fastener hole preparation. The straight cylindrical shank fits standard drill chucks and pneumatic drill motors commonly used in aviation and industrial environments. Conformance to NAS 907 ensures the bit meets established aerospace tooling standards.

Key Features

• Wire gauge size 44 (0.0860 inches decimal) for close-tolerance hole sizing
• 135-degree split point with self-centering geometry eliminates pilot hole requirements
• 6-inch overall length provides extended reach into deep or obstructed work areas
• High-speed steel construction with oxide finish for general-purpose metal drilling
• Web-thinned, tapered web reduces thrust and improves chip flow
• Right-hand cut with two spiral flutes for efficient material removal
• Meets NAS 907 aerospace tooling standard

Compatibility

Designed as a general-purpose aircraft extension drill bit for use with standard straight-cylindrical-shank drill chucks and pneumatic drill motors in aviation maintenance and sheet metal applications conforming to NAS 907 requirements.

Installation Notes

This bit is typically installed and operated by aviation maintenance technicians, sheet metal workers, or machinists using hand-held or machine-mounted drills. Secure the straight cylindrical shank firmly in the drill chuck before use and verify chuck key is removed prior to operation. Use appropriate cutting fluid when drilling hard alloys to extend tool life and maintain hole quality. Inspect the cutting edges before each use and replace the bit if chipping or wear is detected.