Airman 1st Class Casey Pelt, a 28th Aircraft Maintenance Squadron B-1 crew chief, checks out tools before he starts his shift at Ellsworth Air Force Base, S.D., Sept. 11, 2018. The 28th Maintenance Squadron tool crib maintains, distributes and accounts for a multitude of equipment used by Airmen in the 37th and 34th Bomb Squadrons for maintenance and repair of the base’s fleet of B-1s. (U.S. Air Force photo by Airman 1st Class Thomas Karol)