Hydraulic Punch Driver Set Number of Pieces 9 Capacity 10 ga. Stainless Steel Conduit and Pipe Size 1/2 in to 1-1/4 In. Workpiece Material Stainless Steel For Use With 11 Ton Hydraulic Punch Drivers Includes (4) Punches and Dies Sizes 1/2 to 1-1/4 In. 2 in Draw Studs Carrying Case