[Cyberphil]

Hmm, lets see...

Within mechanical, because I am assuming mechanical is more of the centerpiece of the workshops, I would split it into a few different sub-groups. Maybe one for the lathe, one for the mill, one for some basic hand tools (Threading, tapping, hack saw, etc) and one for power tools (band saw, sander, chop saw, table saw, etc). It all depends on what you have in your shop and what you want people to know.