[roboruler]

Definitely cordless, if your aiming for tools which are safe and convenient for students to use cordless drills and impact drivers are best. Cordless drills are less powerful( which is good), lighter, smaller and easier to use.

If there is something that you need a corded drill for it should probably be done in a drill press.

In regards to cordless cutting tools, there isn’t a great deal of difference between corded jigsaws, circular saws and recip saws, so corded or cordless is probably alright.

I would probably stay away from air tools, unless you already have access to compressed air. Compressed Air rivet guns can be great, if you’ve got access to air.