Adjustable Spanner 

Adjustable wrench - stock 6", 8", 10", 12", 15", 18", 24" & 30" The most common type of adjustable wrench in use today. The adjustable end wrench differs from the monkey wrench in that the gripping faces of the jaws are displaced to a (typically) 15 degree angle relative to the tools handle, a design feature that facilitates the wrenchs use in close quarters.