Senior Airman Kyle Eberhart, an aircraft metals technology journeyman assigned to the 28th Maintenance Squadron, practices his welding with a tungsten inert gas welder at Ellsworth Air Force Base, S.D., Oct. 27, 2016. With the numerous types of parts that may need to be created or repaired, metals tech Airmen must remain proficient with all of the equipment in their shop. (U.S. Air Force photo by Airman 1st Class James L. Miller)