I love these wrenches. I like the leverage from the extra length. I like the flank drive open end it grips very well. I like the spline drive especially on 12 point I think it fits better than a 12 point. Some of them work well on sae like the 8 11 14 19. Last but not least the have the movement of a 120 tooth with the strength of a 60 and they are a lot thinner on the ratcheting end than my older set.