The SL FM 85 comes with both Hammer(12) and Knives(24+12) version, Hammer which allows for a heavier application. Usually used for cutting saplings and denser overgrowth. Can be used while driving, its self-levelling feature guarantees an easy operation and copying surface. Equipped with resistant guard to avert debris. Drum stops from full speed in less than ten seconds when the flail mower hydraulic is deactivated.