The most common shapes are called open-ended spanner and ring spanner. The term wrench is generally used for tools that turn non-fastening devices (e.g. tap wrench and pipe wrench), or may be used for a monkey wrench - an adjustable spanner. In North American English, wrench is the standard term.
The definition of first mate is the person on a boat that is second in charge after the captain. An example of first mate is the person who gives orders while the captain is busy. first mate. first mate.
On most ships, the First Mate is the officer who ranks just below the Captain of the ship and takes over in the event that the Captain can no longer perform his duties. Unfortunately this is not the case on a pirate ship. The first mate on a pirate ship is the man the pirate picks as his second in command. In the even the pirate is killed the job falls to the quartermaster. Ships also had second, third, even forth mates creating a chain of command.