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.
What does sb2 stand for in the navy? Known by the SEAL's as on of the Boat Guys, an SB2 is one of the Navy's Special Boat Operators, who are part of the SWCC (Special Warfare Combat Crewmen) community. An SB2 iâ¦s a Special Boat Operator 2nd Class (2nd Class Petty Officer).