I would put some of this stuff on it.
http://www.por15.com/SUPER-STARTER-KIT--Black_p_11.html
Real nice bench. Wish I could of dome something like that when my dad was alive. Great to do stuff with dads!
I have used Black and Decker Cut-Off Wheel. I put it in my skil saw and also used them in my chop saw. Just adjust it little at a time until it's all the way through it. I used them on a 3/4" diamond plate. Mine came out nice and straight.