Combination of vacuum cleaner and hollow drill bit

1. Demand-driven filter cleaning by monitoring the negative pressure, guarantees a continuously high air flow.
2. Electromagnetic shocks clean the filter cartridges alternately for perfectly clean filters.
3. High volume flow and negative pressure at the end of the hose for maximum dust extraction.
4. Automatic filter cleaning during suction operation without interruption of air flow for continuous working.
5. Large filter area for longer service life.
6. Filter material suitable for dust class M with a dust retention capacity of 99.9%.