Blades swap between scarifying and raking, and the depth sets in three positions for each - minus 12, 8 or 4 mm when scarifying and minus 16, 11 or 6 mm when raking. That range covers a light spring tidy and a hard autumn dethatch. The 12 amp motor turns at 3000 rpm across a 13 in width on 120 V. An 11 gallon bag collects the debris so it does not need raking afterward. PP and steel construction weighs 20 lbs. Corded power means no battery to run flat mid-lawn.