As can be seen from the many varied responses, holes can be drilled {dependent on the users skill level} starting w/ an "egg beater" hand cranked drill and ending w/ a fancy, multi-speed floor mounted drill press, w/ the electric "hole shooters" in between {one of the handiest tools ever invented}. Seeing I mostly build Bucks County LRs w/ narrow, side opening patch boxes, I'm going PC and will burn in the screw holes on the present build and won't need any sort of drill, thanks to Rich Pierce.......Fred