A wrench is a tool used to turn or loosen nuts or bolts that have a hexagonal (six-sided) shape on the head of the nut or bolt. It is also known as a hex key or Allen key, named after its inventor, George L. N. Allen.
Wrenches are usually made of metal, such as steel or iron, and come in different sizes to fit different nuts or bolts. They are commonly used in the automotive industry, home repairs, and in mechanical or engineering fields.
There are several types of wrenches, including:
L-shaped wrench: this wrench has an L-shape and is usually made of iron or steel.
T-shaped wrench: this wrench has a T-shape and is usually made of iron or steel. It is more comfortable to use because it has a longer handle.
Wrench set: this is a set of wrenches of different sizes, usually stored in a box or bag.
Wrenches are a common tool used in various jobs and are very useful for facilitating mechanical work and home repairs.
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