my e-revo and dremel dilemma

[mwe-maxxowner]

I've not found one to date. I'm still finding all the stuff here around the college, but no I haven't found one yet. What would three bits cost me? I just want one to cut the al, one to cut the plastic, and a grinding bit to grind the aluminum and clean up sharp edges a little.

edit, and as a sidenote, my only mode of transportation is walking, or the little CAT busses that run around here, but it's hard to get to a specific location using those, and they don't go everywhere. But hey, they're free.