Abstract: An accessory chuck for utility vehicles having an upper jaw and a lower jaw slidably suspended therefrom and movable by turning a threaded rod supported by the upper jaw. Suspending members are pivotally attached to the lower jaw and to pairs of carrying nuts that ride on the threaded rods. Turning the threaded rod from either end causes each pair of carrying nuts to ride closer or farther apart, depending on the direction the rod is turned. As the carrying nuts move, the suspending members raise or lower the lower jaw to a releasing or a gripping position, respectively.