excavator breaking and drilling the concrete road for repairing. large pneumatic hammer mounted on the hydraulic arm of a construc

arm break breaker breaking bucket build builder building cement concrete construction contractor crash crusher demolition destroy development dig digger dirt drill drilling engineering equipment equipmentconstruction excavation excavator gravel ground hammer heavy hydraulic industrial industry jack jackhammer jaw job large machine maintenance mounted pneumatic power quarry reinforced repair repairing road roaddrilled site street tool tools vehicles work