The ryobi rad1801m one43 18v angle drill has a 180 rotating base for easier access to awkward places and reverse action added safety features inculde an electric safety brake electronic variable speed switch and a large trigger switch for a better grip the dual material non slip anti vibration handle for a better grip the keyless chuck and gear box with sintered steel planetary gears lubricated for life standard equipment2 double screwdriver bits bare unit batteries sold separately compatible