I have a need for a really small socket but can't find one in my town. I'm not exactly certain of the size, but it seems to be 3/32" or so - I'm pretty certain it's metric though. 5/32" is the smallest I can find. Radio Shack had a set that contained 3, 4 and 5mm nut drivers but I don't believe they're strong enough for my purposes. These things must exist somewhere, but I haven't been able to come up with it yet. Any suggestions?