Maj. David Aumack from the Safety Office presents tips on power-tool home safety during Vance’s Safety Day Expo. He is demonstrating the proper use of a right-angle drill and other tools, explaining how to avoid injuries at home. The Safety Day Expo took the place of a traditional safety briefing and was open 9 a.m. to 11 a.m, May 22, in Hangar 170 to kick-off the 101 Critical Days of Summer. (U.S. Air Force Photo/Staff Sgt. Brian Hill)