Ridgid 24587 HKO1810 1/2-inch to 4-inch Hydraulic Knockout Punches .
1/2-inch to 4-inch Hydraulic Knockout Kit. Equipped with a hand pump.
Weighs 61-1/4 pounds.
Kit includes the pumps which is equipped with internal safety relief valve.
Precision-ground 3-point punch/die sets with a capacity to 4-inch in 10-gauge mild or 16-gauge stainless steel Tools