What does a mechanic use when he or she needs to get more leverage on a stuck nut?
Answer Breaker bar
A breaker bar is essentially an extension for a ratchet that allows the user to get more leverage. Mechanics rely on breaker bars to loosen stuck nuts that have been caked with years of build-up and corrosion.
Asked by Don Ayres · Last updated 5 years ago · 37.2K views · SOURCE