Abstract: A rotary cleaning device comprising a cup-shaped rotatable base member, a cylindrical resilient mounting received in the cup-shaped member, a plurality of elongated cleaning elements essentially in the form of wood screws mounted in the resilient mounting and extending through and beyond the same. The heads of the screws are positioned between the resilient mounting and the cup-shaped base member. A bolt having an enlarged head extends substantially centrally through the resilient mounting and the base member in a direction opposite from the extension of the cleaning elements. Nuts are mounted on the bolt and engagable with the base member to hold the assembly together in such manner that the heads of the screws are firmly grasped between the resilient mounting and the base member. The portion of the bolt which extends beyond the nuts constitutes a shank which is adapted to engage a rotary chuck for rotating the cleaning device.