1st chamber: … sucks the drill dust completely away at its origin.
Even out of the drill hole !
No drill dust residue on walls or wallpapers !
2nd chamber: … produces a strong vacuum, which sucks the bohrfixx firmly on the wall or ceiling, even on rough surfaces.
Up to 5 kg holding force (in connection with a Starmix vacuum cleaner). It holds a 5m long hose to the ceiling.
