![](http://www.alamy.com/thumbs/6/DC303716-449D-45A6-9B50-48EF92BE0954/A3F64E.jpg)
drilling machine drilling holes in rock for exposives
drilling machine drilling holes in rock for exposives
Size: 3525px × 5247px
Location: San Francisco CA
Photo credit: © Tom Tracy Photography / Alamy / Afripics
License: Licensed
Model Released: Yes
Keywords: construction, drilling, engineer, exposi, exposives, hard, hardhat, hat, holes, machine, machinery, operating, rock, worker