Backup Wrenches 101: An Introduction
They say you can tell a lot about a mechanic or a working person by the type of tools they keep in their toolbox. If you have a backup wrench in your toolbox, it probably means you like to get things done without having to ask for help. If you have never heard of a backup wrench, you really should get familiar with this industrial-level tool. Check out some of the most common questions and answers about backup wrenches.