Fast, convenient disc change with the keyless X-Lock system. Delivers fast cleaning results on metal and masonry surfaces. Features a 3D open-structured fleece, enabling rapid material removal rates without clogging. Silicon carbide fleece coating renews its entire structure and creates sharp cutting edges for efficient and consistent material extraction. Removes rust, paint and oxide layers from metal and lime deposits, moss and graffiti from stone, marble and concrete. Cleaning disc is supported by a fibreglass carrier plate.