We have Hougen 75005 Ogura Punch-Pro Hydraulic Hole Puncher with Product Detail Built for punching up to 7/8-inch diameter holes in materials up to 3/8-inch thick Addition of eyebolts on the sides of the unit allows for easy attachment of a lift assist or a counter-balancer for improved ergonomics Its 3-15/16-inch throat depth adds to its versatility covering a wide range of workpieces Easily confirm the hole position with the jog down feature Punch automatically returns to the starting position after the punching cycle is complete . The "Hougen 75005 Ogura Punch-Pro Hydraulic Hole Puncher" is best product for you. We recommended Hougen 75005 Ogura Punch-Pro Hydraulic Hole Puncher