Stone Pro Revolution Semi Metal Rings for Aggressive Grinding and Scrubbing of Concrete, Terrazzo, and Stone.  Check out other Stone Pro Pads.

The Stone Pro Revolution Semi Metal Rings are the most aggressive grinding tool for the swing machine, burnishers and auto scrubbers. The floor scrubbing pad is perfect for grinding down concrete, terrazzo & stone. Available 30, 50, 100, 200 & 400 Grits. Available in 17" Custom sizes available on request.