4'' Klindex Silicon Carbide Wire Abrasive Brush is designed for daily scrubbing of a variety of tiles, marble, granite, terrazzo and non-slip epoxy finishes . It can be fit on 100mm and 250mm with M14 or 5/8''-11 thread. 110mm and 130mm with snail lock, Frankfurt , Fickert shaped in 10'', 13'', 17'', 19'' .