The RT Series models are geared for extreme environments and bundled with unique features. These high-speed tree saws have a hydraulically rotating head for limb trimming and a built-in 5 gallon spray tank with a hybrid herbicide/diesel capable sprayer pump. The RT Series Models also feature a long 7' reach, a V shield, a blade shield, and a pushing guard. More features and greater performance, the RT Series models are the ultimate land clearing tools.