Well, (in my non-material science engineer mind) you can use forced surface area as an approximation of the theoretical maximum torque that can be applied. The

Well, (in my non-material science engineer mind) you can use forced surface area as an approximation of the theoretical maximum torque that can be applied. The Robertson surfaces are not perpendicular to turning force and has less surface area at the outermost part of the screw. Thus I’d estimate that offset cruciform is superior in that regard. On the other hand, the Roberson might be cheaper to produce and have sufficient torque for a particular application so Torq-set might be overkill.