Slug-Out Self-Contained Hydraulic Knockout Set 1/2 in. to 2 in. conduit size. Optional 2-1/2 in. and 3 in. punch and die available. Kit includes one each 0.5 in., 0.75 in., 1 in., 1.25 in., 1.5 in., and 2 in. punches and dies, hydraulic driver, two drivestuds, one drivestud adaptor, and a metal storage case.