90 Honda Prelude Crank Pully needs to come off!

I need to put a new timing belt on my Prelude but can't figure out how to get the lower crank pully off. It looks like a hex with a hex hole around it. (don't know how to explain it) I'm sure someone here knows what I'm talking about. I assume there is a special tool from Honda to do this but I'm also sure someone has figured out a way to do it without the special tool? I would appreciate any help anyone can give me!
Rob

I got it off finally. Now I'm rolling. I got the head back with the new (non bent) valves so I can't wait to get my lude running.
Rob