I'd like to make a speaker enclosure with only a handsaw and a drill. Now, what do you think the easiest way to cut a circle out would be? Suggestions on a bit to use? I was kind of thinking of using that bit you can get for a dremel so that you can use it as a router, but I don't know if it'll be able to cut through mdf. If there aren't any decent bits that might work, my plan was to try drilling a bunch of holes in a circle and just punching a hole out. The box doesn't have to be pretty, just needs to work. 