Hertel C.E03.0193 Aircraft Extension Drill Bit 48 Hss

Product Description

The HERTEL C.E03.0193 is an aircraft extension drill bit designed for precision drilling in tight or deep-access applications where a standard-length bit cannot reach. Built from high-speed steel with an oxide finish, this bit features a 135-degree split point that is self-centering and reduces walking on entry, eliminating the need for a center punch in most setups. The web-thinned, tapered web construction reduces cutting resistance and improves chip evacuation. At 6 inches overall length with a 1-inch spiral flute, it gives technicians and machinists the reach needed for structural and assembly work. It weighs 0.15 pounds and conforms to NAS 907 standards.

This drill bit is suited for aerospace, aviation maintenance, and general metalworking applications where extended reach is required. Wire size number 48 with a decimal diameter of 0.0760 inches makes it appropriate for close-tolerance hole work in sheet metal, structural panels, and assemblies. It is installed and used by aviation maintenance technicians, machinists, and metalworkers performing general-purpose drilling tasks. The right-hand cutting direction and straight cylindrical shank are compatible with standard drill chucks and right-angle drill attachments common in aircraft maintenance environments.

Key Features

• Wire size number 48 with 0.0760-inch decimal diameter for close-tolerance drilling
• 135-degree split point with self-centering geometry reduces bit walking on entry
• Web-thinned tapered web lowers cutting resistance and improves chip clearance
• 6-inch overall length provides extended reach for deep or obstructed access
• High-speed steel construction with oxide finish for general-purpose metal drilling
• Conforms to NAS 907 standard for aircraft-grade tooling

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard drill chucks accepting a 0.0760-inch straight cylindrical shank. Suitable for use in right-hand rotation drilling equipment.

Installation Notes

This bit is intended for use by trained machinists, aviation maintenance technicians, or metalworkers familiar with drill press or handheld drill operation. Ensure the drill chuck is properly tightened around the straight cylindrical shank before operation. Use appropriate cutting fluid or lubrication when drilling ferrous metals to extend tool life and maintain hole quality. Wear appropriate eye protection and secure the workpiece before drilling.