This was a list of drives, not screws. By my count, 33 out of 37 drivers shown are symmetric with regard to clockwise vs counterclockwise driving. (Tri-wing, To

This was a list of drives, not screws. By my count, 33 out of 37 drivers shown are symmetric with regard to clockwise vs counterclockwise driving. (Tri-wing, Torq-set, One-way, and Mortorq are the only ones I see that are non-symmetric. And three of these are a standard that is really only built one way.