Airman 1st Class Justin Morris, 28th Maintenance Squadron metals technology apprentice, installs a bushing into a new bell crank housing using an arbor press in the metals technology shop at Ellsworth Air Force Base, S.D., May 2, 2012. Once the part is complete, it will be sent to the 28th Munitions Squadron, where Airmen there will use it for realistic training on munitions loading equipment. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)