An adjustable spanner, shifting spanner, English wrench (Turkey) or adjustable wrench is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head rather than just one fastener size, as with a conventional fixed spanner.
From the bottom: The first BAHCO-improvement adjustable wrench from 1892 (Enköping Mekaniska Verkstad) Adjustable wrench from 1910 with an improved handle (BAHCO) Adjustable wrench from 1915 with a slightly rounder handle (BAHCO) Adjustable wrench from 1954 with improved handle and new jaw angle of 15 degrees (BAHCO) Adjustable wrench from 1984 and the first with ERGO handle (BAHCO) Today's version of the adjustable wrench from 1992 with ERGO (BAHCO)
A type called a French key in some times and places
Chrome vanadium adjustable wrench
Adjustable wrench for hexagonal ("hex") fasteners
A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning.
A set of metric spanners or wrenches, open at one end and box/ring at the other. These are commonly known as “combination” spanners.
Wheel-lock gun of Sigismund III Vasa: The original spanner had a square hole for turning the shaft (r.) of the wheel, which tensioned the mainspring. See also § External links.
Image: Bremsleitungsschluessel
Image: Craftsman Saltus wrenches
