Cleveland C13100 Aircraft Extension Drill Bit 3/64 in Hss

Product Description

The CLEVELAND C13100 is a 6-inch overall length aircraft extension drill bit designed for drilling in confined or hard-to-reach spaces where a standard-length bit cannot access. Built from high-speed steel with a bright uncoated finish, it features a 135-degree split point that reduces walking and improves entry accuracy on metal substrates. The bit measures 3/64 inch (0.0469 inch decimal) in diameter with a straight cylindrical shank of the same diameter, making it compatible with standard drill chucks used in aircraft, sheet metal, and precision mechanical work. Two spiral flutes with a tapered web configuration provide efficient chip evacuation over a 3/4-inch flute length.

This bit is suited for general-purpose drilling in aerospace, HVAC sheet metal fabrication, auto body, and mechanical assembly applications where extended reach is required. The web-thinned construction reduces thrust force on thin-gauge materials. It conforms to NAS 907 Type B standards, making it appropriate for use in aerospace and aviation maintenance environments. Machinists, aviation mechanics, and sheet metal workers are the typical end users. The right-hand cutting direction is standard for use with conventional corded and cordless drills.

Key Features

• 6-inch overall length provides extended reach into confined areas
• 135-degree point angle with web-thinned tip reduces walking and lowers entry thrust
• High-speed steel construction handles steel, aluminum, and light alloys
• Tapered web with spiral flutes clears chips efficiently over a 3/4-inch flute length
• Straight cylindrical shank fits standard 3-jaw drill chucks without adapters
• Meets NAS 907 Type B standard for aerospace-grade tooling

Compatibility

Designed as a general-purpose extended-reach drill bit for use in aerospace, sheet metal, and mechanical applications requiring a 3/64-inch diameter hole in metal or similar substrates. Conforms to NAS 907 Type B.

Installation Notes

Install the straight shank securely in a 3-jaw chuck and verify runout before drilling. Power down and de-energize any equipment being drilled before beginning work. Use appropriate cutting fluid for ferrous metals to extend tool life and improve hole finish. Wear eye protection and secure the workpiece to prevent movement during drilling.