cheap small type b47 pneumatic air pick made in china

Mainly used for demolition work, road maintenance or mining and construction project and to break other hard objects

  Model B47 paving breaker is tools with compressed air as its power. The compressed air is distributed alternatively through distributing valve into either end of the cylinder, 

  That make the hammer inside doing reciprocating motion to impact the shank of steel rod. The steel rod chisel into the concrete foundation and then break the concrete into many pieces.