The RA1173AT includes all items necessary for use with 1617PK and 1617EVS Router Combination Packs. It includes dust extraction hoods for the fixed base and the plunge base, plus a third hood for edge-forming that can be mounted to either base. Also included is a vacuum adapter for connection to 1-1/4", 1-1/2" and 35mm hoses. Tool-free mounting hardware is also included for each hood.