Knockout Punch Driver Set Number of Pieces 15 Capacity 10 ga. Steel Conduit and Pipe Size 1/2 in to 2 In. Workpiece Material Mild Steel Includes 1/2 3/4 1 1-1/4 1-1/2 2 in Punches and Dies Hand Ratchet Wrench 1/2 in Bearing and Drive Screw 3/4 to 2 in Bearing and Drive Screw and Storage Case