The ultimate decision is precision
U.S. Airmen assigned to the 20th Component Maintenance Squadron precision measurement equipment laboratory flight, check tools upon entering the PMEL laboratory at Shaw Air Force Base, S.C., July 21, 2016. PMEL calibrated, troubleshot and repaired gear totaling more than 9,600 support equipment annually. (U.S. Air Force photo by Airman 1st Class Christopher Maldonado)