These abrasives and replacement parts fit compatible walk-behind and remote control floor grinders to get the desired finish and keep the machines operating as expected. Abrasives are interchangeable tools (segments) or pads that attach to the floor grinders' rotating discs, so they can grind and polish concrete, natural stone, and terrazzo floors. Also known as grinding shoes, they are available in different grits for the different stages of the finishing process, from grinding to honing to polishing.