The WFT was developed as a precision tool built to last a lifetime (or more) and uses a source of power most people already own – a cordless or electric drill.
Once adjusted to the user’s preference, it’s simply a matter of chucking it up in a drill and feeding cases in by hand – a pace of 10 cases per minute is pretty easy to maintain.
The guys that are into speed report they can do twice that, personally I trim mine at a more leisurely rate while watching a ballgame on TV.