On an upcoming project I will be required to drill a hole right down through the center of a couple of 18-3/4" long oak posts. I plan to drill from both ends and (hopefully) meet in the middle. the holes will be 1/2" or 9/16". I plan to do it on the drill press.
Anyway, was wondering what the best bit for this application (drilling through 9 inches of end grain oak) would be. My first inclination was an auger-type bit, but I've come upon some research that flatly says "never use an auger-type bit in a drill press!" Why is this? And again, what bit should I use? Spade? Regular twist bit?