The basin wrench is usually ideal for tightening and loosening different types of nuts- sink faucets are often held in place by specific types of nuts.
The job can be easily done with the basin wrench because it is able to reach up and into the narrow space behind the sink and to grip onto the nuts.
Actually, it is the single plumbing tool that can accomplish what the basin wrench can do.
Tongue-and-Groove Pliers
Although you may not think so, pliers are a truly essential part of a plumber’s tools.
These specific types of pliers are actually the most common tools that plumbers go to when they need to grab, pull, hold, tighten, loosen, or twist something.
They have serrated jaws generally 45 to 60 degrees from the handles, and the lower jaw can be moved to several positions by sliding along a tracking section under the upper jaw. Plumbers tend to like this tool because the pliers can adjust to quite a few different sizes without the distance of the handle growing wider, which often creates a hand-gripping problem.
Plunger
Wherever your plumber goes, the plunger ought to go right along with him.
