The UM Rotary Tiller is medium-duty and dependable, able to work demanding soils like vineyards or orchards. The UM series is suitable for tractors from 25 to 50 horsepower with a category 1 hitch. Rotation: Forward RPM: 540 HP Required: 25-50 Working Width: 60" Max Working Depth: 7" # of Flanges on Rotor: 7 # of Tines per Flange: 6 Total # of Tines: 42 Rotor Thickness or Diameter: 3" Rotor Swing Diameter: 17" Overall Width: 65" Weight: 578lbs Hitch: Cat I