Chicago-latrobe 11005 Aircraft Extension Drill 1/8 Inch Hss

Product Description

The CHICAGO-LATROBE 11005 is a high speed steel aircraft extension drill bit designed for precision drilling in metal, composite, and structural materials. 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 and eliminates the need for a center punch on most surfaces. The two-flute spiral design with a web-thinned, tapered web configuration promotes efficient chip evacuation. An oxide finish provides basic surface protection. At 0.1250 inches in diameter and 6 inches in overall length, it is well suited for reaching into recessed or deep locations inaccessible to standard-length drill bits.

This drill bit is intended for general-purpose aircraft, sheet metal, and structural drilling applications where extended reach is required. The straight-cylindrical shank fits standard drill chucks without an adapter. It is commonly used by aviation maintenance technicians, metal fabricators, and industrial maintenance professionals working on riveted assemblies, structural panels, and similar applications where a standard drill bit cannot achieve adequate depth or access.

Key Features

• 135-degree split point is self-centering for accurate hole placement without center punching
• Web-thinned, tapered web reduces thrust and improves chip clearing
• 6-inch overall length provides extended reach for deep or restricted-access drilling
• High speed steel construction handles general-purpose metal drilling at production speeds
• Oxide finish for basic corrosion and heat resistance
• Conforms to NAS 907 Type B standard for aircraft drilling applications

Compatibility

Designed as an OEM-style replacement or production-use drill bit compatible with standard 1/8-inch straight-cylindrical drill chucks and keyed chuck systems used in general-purpose and aircraft maintenance drilling operations.

Installation Notes

This drill bit is installed and used by aviation maintenance technicians, metal fabricators, and industrial maintenance professionals. Secure the straight-cylindrical shank firmly in a keyed or keyless drill chuck before use. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Always wear appropriate eye protection and secure the workpiece before drilling.