Abstract: A bowling ball abrader and polisher utilizes cooperative rotational inter-engagement between a cup-shaped abrading an polishing tool and a non-motorized rotating ball holder assembly to obtain even, concentric abrasion patterns on a bowling ball surface. Upon placement of a bowling ball in a ball cradling surface formed in the rotating ball holder, application of the rotating abrading and polishing tool on the surface of the bowling ball causes a corresponding rotation of the bowling ball using the non-motorized rotating ball holder, which enables the outer surface of the bowling ball to be more uniformly abraded and polished.