Master Sgt. Kevin Brackett speaks to members of the U.S. Air Force ROTC Detachment 775 Feb. 25, 2011 at the Joint Base Charleston, S.C. metals technology shop. Master Sgt. Brackett gave numerous demonstrations of the numerical control systems at the shop, and he showed the cadets some of the custom manufactured parts his shop produces on a daily basis. Master Sgt. Brackett is the Metals Tech shop NCOIC, and the cadets are students at the University of South Carolina. (U.S. Air Force photo/Staff Sgt. Shane Ellis)