Abstract: A machine for shredding and removing a resilient covering material from a floor surface has a portable base structure defining an open bottomed shredding chamber and a motor unit adjustably supported on the base structure for rotating a wire brush within the shredding chamber. The brush is adjustable to a desired elevated and inclined position relative to the floor surface to facilitate the shredding action and removal of the covering material from the machine. The base structure is supported on thin disk shaped wheels adapted for penetrating the covering material substantially to the level of the floor surface.