The Torque Multiplyer

A normal human in good shape, how many newtons would they be able to apply? You know, if with a breaker bar with an extension on a big ratchet, you can get to 1000 newton meters. It's hard. So what this does is if you put1000 newton meters on the input shaft, you get 4000 newton meters,. obviously geared down. so it's turning less, but you're able to torque these very high capacity bolts to their required limits without using an impact wrench and getting a very precise number. Wow. What do you call that? A torque multiplier.