Cameras are only as good as what they can record, so it makes sense that they are kept in an optimal condition, just in case they are unfortunately needed. Make sure the cameras you use are maintained well with the tools listed in this post.
Wire Brushes & Wire Wheels
If you live in a particularly harsh environment, you may go through quite a few of these at a time. Used to clean thick dirt out of hard to reach areas. Wire brushes are sold for specific applications, and good brushes feature wires that won’t come off as easy as the cheap ones.
Screwdrivers come in many sizes and configurations. Depending on what cameras you use, you may be better off with smaller precision screwdrivers. These are similar when compared to standard screwdrivers, designed to reach those more delicate and difficult screws.