Hertel C.E03.0318 Aircraft Extension Drill Bit 1/8 in

Product Description

The HERTEL C.E03.0318 is a 1/8 inch diameter aircraft extension drill bit designed for reaching deep or restricted access drilling locations where a standard-length bit cannot fit. Built from high-speed steel with an oxide finish, it delivers reliable performance in metal, composites, and other general-purpose materials. The 135-degree split point is self-centering, reducing the need for a center punch and minimizing walking on entry. At 6 inches overall length with a 1-5/8 inch spiral flute, this bit is well suited for aerospace, automotive, and structural fabrication tasks performed by machinists, aircraft mechanics, and metalworking trades.

This drill bit is intended for use in applications where extended reach is required, such as drilling through deep structural members, aircraft panels, or confined-access assemblies. The right-hand spiral flute and web-thinned, tapered web configuration improve chip evacuation and reduce thrust during cutting. It is a general-purpose bit appropriate for both production and maintenance environments where consistent hole quality and accurate positioning matter.

Key Features

• 1/8 inch (0.1250 inch) diameter with matching 1/8 inch straight shank for standard chuck compatibility
• 135-degree split point with self-centering geometry reduces walking and eliminates center punching in most applications
• 6 inch overall length provides extended reach into deep or restricted drilling locations
• High-speed steel construction with oxide finish for heat resistance and durability in general-purpose metal drilling
• Two-flute right-hand spiral with web-thinned tapered web for improved chip clearance and reduced feed pressure
• 1-5/8 inch flute length (1.6250 inches) supports adequate chip removal in typical drilling depths

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard 1/8 inch straight-shank drill chucks used in handheld drills, drill presses, and right-angle drill motors.

Installation Notes

This bit is installed and used by machinists, aircraft mechanics, and metalworking professionals. Secure the straight shank firmly in the chuck before operation to prevent slipping under load. Use appropriate cutting fluid for the workpiece material to extend bit life and improve hole finish. Always wear appropriate eye protection and follow applicable shop safety standards when drilling metal or composite materials.