Chicago-latrobe 11064 Aircraft Extension Drill Bit No. 34

Product Description

The CHICAGO-LATROBE 11064 is a high speed steel aircraft extension drill bit designed for deep-reach drilling applications where standard-length bits cannot access the work. Built to Series 906 specifications and conforming to NAS 907 Type B standards, this bit features a 135-degree split point that is self-centering, reducing the need for a center punch and minimizing walking on entry. The 0.111-inch diameter corresponds to wire gauge size No. 34. The oxide finish provides a baseline level of surface protection. Two spiral flutes with a 1.5-inch flute length clear chips efficiently while the tapered, web-thinned construction reduces cutting resistance on breakthrough.

This drill bit is suited for use in aerospace, aviation maintenance, and general metalworking applications where extended reach is required. The straight cylindrical shank seats securely in standard drill chucks. Right-hand cutting direction makes it compatible with conventional clockwise-rotation drill motors. General purpose tool performance rating makes it appropriate for a range of ferrous and non-ferrous materials encountered in sheet metal and structural drilling tasks. It is typically used by aircraft mechanics, MRO technicians, and sheet metal fabricators.

Key Features

• 135-degree split point is self-centering, reducing setup time and walk-on-entry
• Web-thinned, tapered web construction lowers thrust requirements during cutting
• NAS 907 Type B compliant for use in aerospace and aviation maintenance contexts
• Oxide finish on high speed steel construction for standard durability in general purpose drilling
• Straight cylindrical shank at 0.111 inches diameter fits conventional drill chucks without adapters
• Two spiral flutes with 1.5-inch flute length for efficient chip evacuation in deep or extended-reach holes

Compatibility

Designed as a general purpose aircraft extension drill bit compatible with standard drill chucks and right-hand rotation drill motors; consult application tooling specifications to confirm fit for specific materials and hole tolerances.

Installation Notes

Installation of this drill bit should be performed by qualified technicians following applicable shop procedures and safety standards. Ensure the drill motor is fully powered off and secured before inserting or removing the bit from the chuck. Verify chuck size is compatible with the 0.111-inch straight cylindrical shank before tightening. Follow applicable NAS or shop standards for drilling speed and feed rates based on the material being drilled.