FWIW, Snap-On wrenches and sockets have offered that same
feature - off-point bearing "flank drive" - for over 20 years. 

Dale R.
Donald Willard Garrett wrote:

Years ago, I stayed up watching one of those infomercial shows, and made what turned out to be my favorite tool purchase ever. When they got stolen from my car, I bought the deluxe set, and like it even better. Rather than turning the corners of the nut, they cam onto the face, meaning:

  1. each socket / wrench does both metric and the nearest fraction of
     an inch
  2. you can't strip a nut or bolt head with them
  3. you can turn a nut or bolt that's stripped almost round

Additionally, I've used (abused) them with cheater bars, and am confident that anything I can get a socket on I can either crack or twist off the bolt (like the head bolt on a Chevy 454--oops). I've pulled engines etc. foreign and domestic, and handed them over on numerous occasions to jobsite crews when regular hex wrenches fail (tool sacrifice--watched guys hang from them and hit them with hammers) with zero failures.

There you have it, of all the tools I own, the only ones I'd ever do a commercial for!

http://www.mitools.com/