Technical Sgt. Percy Padilla, a metals technician at 452nd Maintenance Squadron, uses a grinder to shape a metal part. The tool is used for a number applications, like removing paint or grinding down a weld. As a metals technician, Padilla also machines metal parts. Metals technicians are part of the squadron’s Fabrication Flight and work out of the Metals Technology shop. (U.S. Air Force photo by Val Gempis)