The GD50 drives ground rods with proven hard-hitting Òtop drivingÓ power and frequency. With two models available either 1/2 to 5/8 in. or 3/4 to 1 in. ground rod can be driven. A cast-in lifting eye allows the operator to suspend the driver above the rod with ease. The long side handles give the operator control during the driving process. The GD50 contains an interchangeable deep socket anvil to fit the rod end. All hammering is against the anvil and not the rod. The GD50 is furnished with flush faced quick disconnect couplers 8-foot hose whips and dual-spool in-line ON/OFF valve.