I want to cut a hole in my desk (3/4" furniture grade plywood with an oak veneer) to run cables through. I'll be using a hole saw and my cordless drill. Since this is going to be very visible, I want to be sure that the hole is perfectly vertical, and that I get it right on the first try.
How can I ensure that the drill is angled correctly? Should I even be trying this with a hand-held drill? If not, what tools should I think about using?