The attachment features two unique air chambers: one allows the drilling bit to pass through when drilling into the work surface. The second air chamber is designed to maintain suction to the wall during the drilling application. The dust port is designed for Bosch 1-3/8 In. vacuum nozzle but can be used with either 1-1/4 In. or 2 In. vacuum nozzles when used with the appropriate adapter.
The system is universal and is designed to connect to a vacuum so that it can be used with any size hammer and can accommodate the full range of drill bit diameters and drilling depth.
Dual air chambers provide for both dust collection during use and provide suction to the wall
Dust port fits Bosch 1-3/8 In. vacuum nozzle and can convert to 1-1/4 In./2 In. hose nozzles
Replaceable brush ring provides seal for multiple bit diameters
Rubber seal maintains suction to wall