I should have pointed out the difference between single cut and double cut burrs. Single cut will cut faster and clog less in aluminum but it also makes long very sharp slivers that can ruin your day. Please at least wear good eye protection with either type of cutter. If you have to go to the emergency room with metal in your eye they will show you their grinder. Real close up!
To follow up on this thought, an old steam turbine blader who worked with grinding burrs all the time taught me the metal you need the most protection from is stainless steel. If you get a sliver from carbon steel, it will fester and eventually come out. Stainless steel will not. It will be there until you dig it out. Eye protection, long sleeves, and gloves are your friends.
