Adjustable variable speed dial and trigger (800 to 2200 RPM) helps better control the tool during every step of the application Brushless Motor for efficient performance and provides steady/consistent speed Rubber gear case overmold reduces surface imperfections and improves gripping surface Tool can be used with side handle or bail handle (both included in kit) Removable dust covers help protect the motor and electronics from wool fibers and residue Lock off and lock on trigger Side ways battery pack allows for better ergonomics