Included: Bosch RA1172AT (1) 2-Piece Router Dust Extraction Vacuum Hook Kit and (1) Hose Adapter for Routers 1617 and 1618 Series. Universal Compatibility: Comes with a vacuum hose adapter that can connect to 1-1/4", 1-1/2", and 35 mm hoses, making it compatible with a variety of shop vacuums. Tool-Free Mounting: Features tool-free hardware for quick and easy installation and removal of the dust hoods. Optimized Design: The hoods have angled ports to improve dust collection and keep the vacuum hose from interfering with your work. Designed for Bosch Routers: This kit is specifically made for use with Bosch 1617 and 1618 series fixed-base routers.