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.
A CM 2 is a Construction Mechanic-the CM is for the rate designation, the 2 is for the Petty Officer (NCO) rank level, which in this case is a Petty Officer 2nd Class. The enlisted pay rate is E-... Read More Â». http://wiki.answers.com/Q/What_rank_is_CM2_in_the_US_Naval_Reserve.