Chicago-latrobe 11000 Aircraft Extension Drill Bit 3/64 in

Product Description

The CHICAGO-LATROBE 11000 is a high speed steel aircraft extension drill bit designed for precision drilling in tight or deep-reach applications. Built to Series 906 specifications and compliant with NAS 907 Type B standards, this bit features a 135-degree split point and a 6-inch overall length that gives technicians extended reach where standard-length bits fall short. The oxide finish provides mild corrosion resistance and reduces friction during cutting. Two spiral flutes with a tapered web and web-thinned geometry help evacuate chips efficiently while maintaining cutting stability in small-diameter work.

This drill bit is suited for aerospace, aviation maintenance, and general industrial applications where a small-diameter, long-reach bit is required. The 3/64-inch diameter and 3/4-inch flute length make it appropriate for drilling thin-gauge materials, sheet metal, and structural aluminum. It is commonly used by aircraft maintenance technicians, sheet metal workers, and industrial machinists. The straight-cylindrical shank seats cleanly in standard drill chucks and extension holders.

Key Features

• 135-degree standard point angle for reduced walking and accurate hole starts
• Web-thinned, tapered web construction for easier penetration in hard materials
• 6-inch overall length provides extended reach in confined work areas
• Oxide finish reduces friction and offers mild surface protection
• NAS 907 Type B compliant for aerospace-grade quality assurance
• Right-hand cutting direction with two spiral flutes for efficient chip evacuation

Compatibility

Designed as an OEM-style replacement and general-purpose drill bit compatible with standard drill chucks and extension holders accepting a straight-cylindrical shank in 3/64-inch diameter.

Installation Notes

Installation and use should be performed by qualified machinists, aircraft maintenance technicians, or sheet metal workers familiar with small-diameter drill bit handling. Secure the straight-cylindrical shank firmly in the drill chuck before operation to prevent slippage. Use appropriate cutting fluid or lubricant when drilling hard metals to extend bit life and maintain hole tolerance. Do not exceed the recommended feed rate for the material being drilled, as small-diameter bits are susceptible to breakage under excessive lateral load.