Our roof has these wooden support beams which are a pretty rough cut wood, I was wondering which electrical sanding tool would be the best for something like this, an orbital sander, belt sander...? Thanks!
I would use a seven inch disc on a large angle grinder. It's super aggressive, def will be the fastest. A bit hard to control, and easy to have it dig in, so practice where you can't see it. Your arms will feel the burn after.