U.S. Air Force Airman 1st Class David Norgaard, 1st Maintenance Squadron metals technology apprentice, removes a piece of metal at the metals technology shop at Joint Base Langley-Eustis, Va., Aug. 17, 2017. “Measure twice, cut once” is the moto that metal technicians operate by to ensure the accuracy and precision of their work. (U.S. Air Force photo by Senior Airman Derek Seifert)