Mini Pliers Wrench
If you have gear that has adjusting knobs and levers, check out the Knipex Mini Pliers Wrench.
The Knipex Mini Pliers Wrench works like an adjustable pliers but the jaws stay parallel like a wrench's. Unlike an adjustable wrench, it doesn't have to be perfectly dialed in, and of course it also works as a pliers. It's a real time-saver.