The ratchet pruner, which can handle stems thicker than two centimetres, fits in this category. Bert to work as a tree pruner. Beta Ray Bill debuts in the episode "Innervisions", voiced by Karl Pruner. He became a pruner and helped support his widowed sister and her seven children. Pruner studied the racial structure of Negros in Egypt. Pruner served as an independent director on the Board of Anadarko Petroleum. Pruner is originally from Chicago and attended the University of Chicago Laboratory Schools. In 1999 Pruner played detective Ian Farve, a leading role in the television series "".