Back in the 1990's many vendors sold those cheap nine piece kits that held, among other things, two Philips screwdrivers: #1 and #2, a couple of flat head screwdrivers, and a pair of hex nut drivers. For me, the most common use of these last two was screwing the standoffs into the bottom of the case to mount the motherboard.
What sizes were these two, because among the entire collection of bits I have for my electric screwdriver, I have a complete lack of hex nut drivers. I've started rebuilding systems out of parts I have, to be given away to charity, and it would be nice to have these two bits added to my collection.
