Hertel C.E05.0193 Aircraft Extension Drill Bit 48 Hss

Product Description

The HERTEL C.E05.0193 is a wire gauge size 48 aircraft extension drill bit designed for drilling in tight or deep-clearance applications where a standard-length bit cannot reach. Built from high-speed steel with an oxide finish, it measures 12 inches in overall length with a 1-inch spiral flute. The 135-degree split point is self-centering and web-thinned, reducing the force needed to start a hole without a center punch. This bit is intended for general-purpose drilling and is manufactured to NAS 907 standards. It is installed and used by aircraft maintenance technicians, machinists, and sheet metal fabricators working in production or MRO environments.

This aircraft extension drill bit is suited for reaching fastener locations in airframe assemblies, structural panels, and other applications where extended reach is required. Its 12-inch length makes it practical for drilling through wing skins, fuselage sections, or any structure where a standard jobber-length bit lacks the clearance to operate. The straight cylindrical shank fits standard drill chucks. Right-hand cutting direction is standard for conventional drilling operations. General-purpose performance rating makes it appropriate for aluminum, mild steel, and similar materials encountered in aerospace and industrial work.

Key Features

• Wire gauge size 48 (0.0760 inches) for precise small-diameter hole drilling
• 12-inch overall length provides extended reach in deep or obstructed work areas
• 135-degree split point with web thinning for self-centering starts and reduced thrust force
• High-speed steel construction with oxide finish for durability and heat resistance
• Spiral flute design promotes chip evacuation during drilling
• Manufactured to NAS 907 standard for aerospace-grade dimensional consistency

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 hand drills, right-angle drills, and drill presses used in aerospace and industrial applications.

Installation Notes

This bit is installed and used by aircraft maintenance technicians, machinists, and sheet metal workers following applicable maintenance manuals and workplace safety procedures. Secure the workpiece and ensure the drill chuck is properly tightened before operation. Inspect the cutting edges for wear or damage before each use and replace if the point shows signs of chipping or dulling. When drilling ferrous materials, use appropriate cutting fluid to extend bit life and maintain hole quality.