My team (me especially) had a lot of trouble finding a stinkin' metal spur gear to attach to the drill motor (because we aren't going to use the gearbox that came with it for space reasons). It is Mod .7 and the only site I found which had that availible (in stainless steel - better than nylon found on globalspec!) is:
www.pic-design.com
it's such an obscure pitch, and on top of that we wanted a gear with 64 teeth!
So anyway, I hope that this helps out another team.
Lauren