mmckenna
I ♥ Ø
If you're getting screwdrivers, it's worth getting a set with JIS tips.. Similar to these: Amazon.com : JIS screwdriver
Most Japanese radios use this type of screw to hold on the case panels, PC boards etc.. JIS is very similar to Phillips and in most cases you can remove/replace the screws with a Phillips screwdriver, but the JIS will fit much better.. You'll have less chance of marking or rounding off a really tight screw.
Same with Japanese motorcycles. The Phillips drivers will slowly damage them, but they'll work in a pinch. A good set of JIS drivers, or at least JIS bits are a good option if you disassemble the radios.