Hertel C.E02.0151 Aircraft Extension Drill Bit No. 53

Product Description

The HERTEL C.E02.0151 is an aircraft extension drill bit designed for reaching into confined spaces and deep holes where standard-length bits cannot access. Built from high-speed steel with an oxide finish, this bit carries a wire gauge size No. 53, which corresponds to a decimal diameter of 0.0595 inches. The 135-degree split point reduces walking and improves entry on curved or irregular surfaces. With an overall length of 6 inches and a spiral flute configuration, the C.E02.0151 suits precision drilling tasks in metal fabrication, aerospace maintenance, and general mechanical work. Installation is handled by machinists, aircraft mechanics, and general maintenance technicians.

This bit is suited for drilling operations where clearance depth matters. The 6-inch overall length provides the reach needed for structural access work typical in aircraft sheet metal repair and extended-reach hole drilling in tight assemblies. The straight cylindrical shank seats directly into standard drill chucks without an adapter. With a flute length of 0.875 inches and a two-flute spiral design, chip evacuation remains efficient during steel and aluminum drilling at general-purpose feed and speed ranges. The web-thinned, tapered web construction reduces thrust requirements at the cutting edge.

Key Features

• Wire gauge No. 53 sizing at 0.0595 inches decimal diameter for precise hole tolerance
• 135-degree standard point angle with web thinning reduces walking and entry force
• 6-inch overall length provides extended reach for confined-space drilling
• High-speed steel construction with oxide finish for general-purpose metal drilling
• Two-flute right-hand spiral design promotes efficient chip removal
• Meets NAS 907 standards for aircraft-grade tooling applications

Compatibility

Designed as a general-purpose aircraft extension drill bit compatible with standard drill chucks accepting a 0.0595-inch straight cylindrical shank, suited for use in aerospace maintenance, sheet metal fabrication, and extended-reach drilling applications.

Installation Notes

This bit is installed and operated by machinists, aircraft mechanics, and maintenance technicians using standard drill presses, hand drills, or pneumatic drill motors with a compatible chuck size. Secure the straight shank fully in the chuck before operation and verify runout before drilling precision-tolerance holes. Use appropriate cutting fluid when drilling steel to extend tool life and maintain hole quality. Always wear eye protection and follow applicable shop safety procedures when operating rotary cutting tools.