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 10 ga 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