I often use a 3/8 and 5/16 ratcheting wrench for working on various types of flippers. So a set can be good value.
It’s a bit of a specialty tool, but I find the 1/4" long hollow WIHA nut driver to be a great companion to the previously mentioned Klein magnetic tip. The latter is probably my most used tool of all but there are a few cases where it simply doesn’t work. The threaded part sticking up out of a star post screw is often too wide to fit into the hollow shaft for example. The WIHA can handle any of these, plus it will fit completely over a mini post (like this) making for very easy removal without risking damage from a wrench.
