10Ton 1/2" to 2" Hydraulic Knockout Punch Driver Tool Kit + 6 Dies Hole Tool

10 ton hydraulic opener is made of high quality steel material, sturdy and durable For the installation and maintenance of electrical conduit signal light machinery With 6 dies and punches including 1/2 inch, 3/4 inch, 1 inch, 1-1/4 inch, 1-1/2 inch and 2 inch A clean and uniform hole can be obtained by a good fit between the drill and the drive bolt Using the safety valve, the pressure will be released automatically when the pressure reaches the limit maximum