Variable speed for increased cutting efficiency, long 1-1/8" stroke for faster cutting, all ball and needle bearings for longer tool life, internal dust blower system clears debris from the line of cut for better visibility and accuracy. Heavy duty shoe features tool-less adjustment. Specs: 1-1/8" stroke length, strokes/min 0-2,800SPM, 17-3/4" long, weighs 7.3lbs. Includes: (2) blades, (1) plastic tool case.