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.
In an inboard boat the gear is inside the boat and on a I/O the gear or transmission, also called a stern drive unit is mounted to the transom on the outside of the boat.The stern drive unit is sometimes referred to as an out drive unit.his maneuverability when the vessel is placed in reverse is shared with stern drive boats but not inboard boats, which use a rudder for steering. The major different between an I/O boat and an inboard is the transmission or gear.