DIAMABRUSH922001202 Concrete Mastic Abrasive Pad,20 in. Dia.

For the job i bought this pad for, it worked way better than expected. 36 grit is a bit aggressive on hardwood floors. However that was my mistake, next time I'll probably get 50 or 80 grit. Also I think this is intended for concrete, not wood. But it worked amazingly.