From Middle English wrenchento twistfrom Old English wrencanwer-2 in Indo-European roots
American Heritage Dictionary of the English Language, 5th Edition
From Old English wrenċan, from Proto-Germanic*wrankijaną. Compare German renken.
Wrench Sentence Examples
I often carry a small pipe, which will fit over the lug wrench.
Often tightening them with your hands or a wrench will solve the problem.
Again, that wrenches of arbitrary amounts about two given screws compound into a wrench the locus of whose axis is a cylindroid.
And how many of us have a torque wrench?
If we imagine a rigid body to be acted on at given points by forces of given magnitudes in directions (not all parallel) which are fixed in space, then as the body is turned about the resultant wrench will assume different configurations in the body, and will in certain positions reduce to a single force.