The Diamabrush Multi-Step Concrete Floor Polishing System makes it easy for concrete floors to look their best. The system includes a series of increasingly finer diamond grit blades ranging from 100 to 2000 grit and in two different sizes: 16 and 19 in. The system transforms a conventional floor machine into a concrete polishing machine without the need for heavy and expensive equipment. The system cleans up to 15,000 sq. ft. at $0.25/sq. ft. Powr-Flite. 800-880-2913.