I have a production opportunity that involves drilling 1/2" and 3/8" through holes in 2"x 2" x1/8" square Aluminum tube. I don't know the alloy yet. The holes don't have to be burr-free but I would like to minimize the burrs without any secondary operations. The holes will be drilled with a drill press. So, I think it comes down to what type of drill bit configuration to use. Would brad-points or Forstner bits work? I looked on the web and saw all kinds of slick burr removal tools but no good answers for single operation drilling.
I bet Joe knows!