The problem with pin vise bits these days is that it seems darn hard to buy just the ones you want anymore. I rarely use more than two or three bit sizes but it seems that my local store and all the online stores in my country now only stock sets. I don't want to spend 20 bucks on a .5mm drill bit. If anyone knows where to buy single bit only I'd like to know too.
Edit: I did find a site in the US but the bits cost $2.75 and the postage was $28 to Australia!!