Cotter Key Puller

A Cotter Key Puller, also known as a cotter pin extractor or cotter pin puller, is a tool used to remove cotter pins from various mechanical assemblies. Cotter pins are small metal pins that are commonly used to secure bolts, nuts, and other fasteners in place. They have a unique shape with one end bent into a loop or "hairpin" shape, which prevents them from easily sliding out.

When it becomes necessary to remove a cotter pin, a cotter key puller can be used to safely and efficiently extract it. The tool typically consists of a handle with a hook or forked end that is designed to fit around the looped end of the cotter pin. By applying pressure and pulling on the handle, the cotter pin can be easily removed without damaging the surrounding components.

Cotter key pullers are commonly used in automotive, aviation, and other mechanical industries where cotter pins are frequently used. They are a handy tool to have in your toolbox if you often work with cotter pins and need to remove them quickly and easily.