If any of you pro shop operators out there are using an older style drill press, as opposed to a mill, I've got the drill bits you need!  Originally designed for the KMT Personal Ball Jig, I have discovered that these bits work better than standard bits in a drill press.  Cleaner holes, less effort, and NO drift on any density core!  Slugs and inserts fit perfectly!  I have sold them to all of the shops in my area and everyone loves them!  Get a look at them at www.youtube.com/kmtproshop or www.myspace.com/kmtproshop.  Web site will be www.kmtballjig.com but it is currently still under construction.