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An adjustable spanner (UK and most other English-speaking countries), also called a shifting spanner (Australia and New Zealand) [1] or adjustable wrench (US and Canada), [a] is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head (nut, bolt, etc.) rather than just one fastener size, as with a conventional fixed spanner.
Lightweight, stack-able, saw horses from the book Agricultural Woodworking: a group of problems for rural and graded schools ... by Louis Michael Roehl (1916) In woodworking, a saw-horse or sawhorse (saw-buck, trestle, buck) [1] is a trestle structure used to support a board or plank for sawing. A pair of sawhorses can support a plank, forming ...
Monkey wrenches are still manufactured and are used for some heavy tasks, but they have otherwise been mostly replaced by the shifting adjustable wrench/spanner, which is much lighter and has a smaller head, allowing it to fit more easily into tight spaces, and the tooth-jawed, torque-gripping pipe wrench.
Sawhorses, short sawhorses are called ponies. Material handling tools and equipment. Gin pole or shear legs may be used in lifting wall sections or timbers.
An illustration of a torture horse of the Spanish donkey variety. Riding a rail, sketched by Andrew W. Warren in November 1864. The first variation of the wooden horse is a triangular device with one end of the triangle pointing upward, mounted on a sawhorse-like support.
A set of metric spanners or wrenches, open at one end and box/ring at the other. These are commonly known as “combination” spanners. 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.