This model hydraulic Notcher will cut notches from 30 to 140 degrees in mild steel and up to 6mm in thickness and will do this at a maximum rate of 15 strokes per minute. 24 Ton Capacity 4 Ga. Mild Steel, Cutting Length 8.5" x 8.5", Table dimension 37.4" x 31.2" Long 8.5” blades that can be resharpened many times for even more life The blades have a negative rake to pull the material to the stops during the cut, for the best accuracy available. Blade angle is adjusted with the use of hand wheel and the notching stroke is controlled by a foot pedal.