Originally Posted by Duragrouch

Perhaps not. Yes, more corners. But at 30 degree angle to rotation circumference. Square drive is 45 degrees, more oblique. Hex drive bolts had a nasty tendency to strip the corners off the head when trying to break loose aircraft bolts that had been on a while in humid Vietnam. The air force tasked Snap-On to work on the problem and they invented Flank-Drive, with corners of 6-point box wrenches and sockets relieved so that the drive force was a bit inboard from the hex corners, and it worked. You'll see it on other brand wrenches these days, either the patent expired or they paid a licensing fee.

12-point aircraft bolts still have the 30 degree drive angle, but 12 drive points overcomes that.