For the wrench turners, your favorite tool of all time?

Two of my all time favorite tools are: the Rotational head ratchet wrench, and the long reach Ball hex wrench. Both tools have helped in places where reach is a challenge or the angles are so funky nothing else works. Neither tool is really designed for high torque so I don't recommend them for that purpose, but they do great on 95% of just about everything else. The Roto Ratchet is my go to for 1/4" and 3/8" sized sockets. At the 1/2 inch size I don't have one and most likely won't as the majority of what I use 1/2 for is higher torque work, wobble extension can help me on the odd angle if needed. So what is your go to tool?