Staff Sgt. Edward James Broz, 69th Maintenance Squadron aircraft metals technology craftsman, sweeps aluminum scraps after making a metal bushing on a metal lathe Feb. 7, 2014, at the 69th MXS workshop on Grand Forks Air Force Base, N.D. Safety googles are worn from start to finish during shop projects and even during clean ups in order to avoid eye injuries. (U.S. Air Force photo/Staff Sgt. Luis Loza Gutierrez)