The Bosch EXPERT SDS Clean Max-8X hammer drill bits have been specifically designed for drilling holes and removing dust at the same time, making your work faster and simpler.
Originally designed for construction workers and installers who need to drill holes for chemical anchors. 
The drill bit comes with a 4-cutter full carbide head and robust dust extractor pipe so you can punch through reinforced concrete with ease.
Works with the SDS Clean max Connector, which fits all SDS Clean max-8X drill bits and is easy to mount and detach. 
Easily clean when clogged, simply remove the extractor pipe from the drill bit)
Dust reduction technology helps you prepare holes for chemical anchors faster and keep the air on the jobsite cleaner.
20mm x 400mm x 650mm