Air-Powered-Angle-Grinder Published January 15, 2013 at 360 × 262 in Air Compressor Pneumatic Tools: Air Powered Sanders, Router, Drill and More The angle grinder is mostly a metal grinder, but has a home in a wood shop as a standard sander and power carving, and the air die grinder (right) with a 1/4″-shank burr can be used as a shaper and carver as well.