Featuring a simple and intuitive depth selection pin with easy-grip rubber knob, select aerating depths of 1” to 4” in 1/2” increments to meet the needs of each specific property. Hydraulic tine engagement, via a convenient foot-activated switch, allows you to keep your hands on the steering controls for maximum productivity and safety. Plus, a tine activation switch on the instrument panel prevents accidental engagement or disengagement while working or transporting.