We're replacing carpeted flooring with stained concrete in our house, so our floors require some grinding. My contracted "cement guy" attached my new RIDGID 7 inch 24-Segment Turbo Cup Grinding Wheel to my new Makita grinder, probably using the method Splitshaft described.
The Makita 7 in. Angle Grinder is built around a powerful 15 Amp motor that delivers up to 6,600 RPM for fast stock removal. It features labyrinthine construction that helps seal internal components from outside contaminants to help increase tool life.