Tool

 is an item in Fallout and Fallout 2.

A tool set, containing various useful tools, including pliers. (20% bonus to repair skill when used)

Tools are worth a lot of money if you sell them to certain people, and they are quite common.

Fallout

 * If you tagged Repair, your character will have one of these at the start.
 * Doc Morbid has one on his person.