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.
But that does not mean that each member of the boat does not have an important, and slightly different, role to play. As oarsmen face away from the direction they are travelling, the front of the boat is inhabited by Bow, but it is at the back - the stern - where the management duties are held. COX - VOICE OF THE BOAT. In the Boat Race, more than in international competition, the coxswain is a vital addition to the crew.