Mike Mauk, 428th Republic of Singapore Equipment Maintenance Squadron technician, sifts a handful of garnet sand at Mountain Home Air Force Base, Idaho, March 10, 2015. The sand is highly pressurized and blasted at sheets of various metals, and is capable of cutting intricate shapes used for aircraft. (U.S. Air Force photo by Airman Connor J. Marth/Released)
Airman Connor Marth
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