Two jackhammers with different pitch drilling concrete on the street in New York City, close perspective
Drill parade of marching military men, boots on concrete floor indoors. Large group marching.
Roadwork with grinding machine noise, some workers talking
Skid steer loader breaking concrete - Bobcat S250 with breaker attachment, working and breaking concrete.
cordless DeWalt DW 9072 drill knocking and drilling several holes into a ceiling, series.