Hertel C.E05.1008 Aircraft Extension Drill Bit Letter X

Product Description

The HERTEL C.E05.1008 is an aircraft extension drill bit designed for deep-reach drilling applications where standard-length bits cannot access the worksite. Built from high-speed steel with an oxide finish, this bit measures 12 inches in overall length with a 3.75-inch spiral flute. The 135-degree split point is self-centering and web-thinned, reducing the force required to start a hole and minimizing walking on hard or curved surfaces. The straight cylindrical shank seats securely in standard drill chucks. This bit is well suited for metalworking tradespeople, aircraft maintenance technicians, and fabricators working in confined or deep-access conditions.

This drill bit is intended for general-purpose drilling in metal, primarily in aerospace, structural fabrication, and industrial maintenance applications. The extended 12-inch overall length makes it practical for drilling through structural members, bulkheads, or assemblies where a standard jobber-length bit would not reach. The right-hand spiral flute provides efficient chip evacuation during through-drilling operations. It conforms to NAS 907 standards, making it appropriate for use in aerospace maintenance environments where material traceability and dimensional compliance are required.

Key Features

• 135-degree split point with self-centering geometry reduces walking and lowers feed pressure
• Web-thinned tapered web configuration improves cutting efficiency and reduces heat buildup
• 12-inch overall length provides deep-reach access in structural and aerospace assemblies
• High-speed steel construction with oxide finish for corrosion resistance and durability
• Right-hand, two-flute spiral design promotes consistent chip removal
• Meets NAS 907 standard for aerospace drill bit dimensional requirements

Compatibility

Designed as a general-purpose aircraft extension drill bit suitable for use in standard drill chucks accepting a 0.3970-inch straight cylindrical shank, compatible with most hand drills, drill presses, and pneumatic drill motors used in metalworking and aerospace maintenance.

Installation Notes

Installation and use of this bit should be performed by qualified machinists, aircraft maintenance technicians, or trained metalworkers. Secure the workpiece and ensure the drill chuck is properly tightened before operation. Use appropriate cutting fluid for extended drilling in metal to reduce heat and extend bit life. Inspect the cutting edges before each use and remove the bit from service if chipping or excessive wear is observed.