Using the Klein Tools Can Wrench is easy. When you need to open telephone box fasteners, just use the appropriate end of the wrench. For tightening nuts on binding - post terminals, switch to the other end. Make sure to use the correct socket size to avoid any damage. When not in use, store it in a dry place to prevent rust. You can clean it with a dry cloth regularly to keep it in good condition. Don't use excessive force as it may damage the tool or the objects you're working on.