Powerful DEWALT fan cooled motor with replaceable brushes and variable speed delivers fast cutting action up to 3000 strokes per minute. Quick and easy patented key less blade change system accepts t-shank blades. Tool free adjustable shoe with anti-scratch cover bevels 45 degrees in both directions. 3-position orbital action controls the aggressiveness or smoothness of cuts. Patented anti-vibration counter-balance mechanism and rubber grip provide smooth operation. Dust blower keeps line of cut clear of chips. Lock-off switch for added user safety. Modular component design for trouble free servicing. Rubber coated grip to reduce surface vibration and user fatigue.