Hydraulic Hole Punch CGOLDENWALL 6.5 To 20.5 Mm Electric Hydraulic Puncher 5 Types Hydraulic Punch Drilling Hydraulic Punch ing Tool With Dice For Dr Hydraulic Hole Puncher Auxiliary Handle Design The handle is Detachable for easy working at different angles TLP Hydraulic Puncher MHP-25 - Hup Hong Machinery [Drilling Capacity] Copper, aluminum plate, iron with a thickness of 6 mm or less, drilling dies with steel plates 6., 5, 9, 13, 17, 20., 5 mm are attached with a thickness of 8 mm or less. It is a hydraulic electric puncher applied for drilling of copper, aluminum, steel, iron plate, 4 to 6 # angle, etc. [Drilling Capacity] Copper, aluminum plate, iron with a thickness of 6 mm or less, drilling dies with steel plates 6.5, 9, 13, 17, 20.5 mm are attached with a thickness of 8 mm or less Oil Return Switch Rotating it can operate the Pressurisation & Pressure Relief Electric Hydraulic Hole Punch, Metal Hole Puncher With 5 Sets Punch/Die Motorized, labor saving effectiveness