We have Hougen 75006 Ogura Punch-Pro Hydraulic Hole Puncher with Product Detail Our heaviest duty model with 34.1 tons of pressure Will produce 15/16-inch round holes through 1/2-inch thick material in approximately 4 seconds Eyebolts on both sides for easy attachment of a lift assist or a counter-balancer for improved ergonomics 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 75006 Ogura Punch-Pro Hydraulic Hole Puncher" is best product for you. We recommended Hougen 75006 Ogura Punch-Pro Hydraulic Hole Puncher