Definition of Wrench

In the world of tools, few items are as well known and useful as the famous wrench. This key is a tool simple that, due to its ability to adjust to different sizes and diameters, can be used in many different situations. The wrench is a tool of type Handbook (i.e. you don't need any kind of Energy to work) and it is quite simple also in its Format: flat, of metal heavy and with a rounded tip and another tip with two pliers that are shortened or enlarged in their distance intermediate depending on the needs of each case.

The spanner bears this name because it was created in the mid-19th century by Richard Clyburn, an English engineer who sought to develop a simple and useful tool in various situations. Unlike other manual wrenches that already existed, what this English engineer achieved was to make the same key model now adjustable and then toggle the existing width between each pliers in order to properly grasp or hold each element without the need to have a different type of key for each width existing.

The wrench has since been one of the simplest tools used by man, also cheap and accessible in economic terms in comparison with other great mechanical or even power tools that have emerged over time. The main function of the wrench (as well as that of any wrench) is to tighten and loosen bolts and nuts and is usually always in a design basic and very simple that involves the central part and a handle, all made of resistant and firm metal that facilitates the adjustment and loosening action. The section that allows adjustment is a species wheel that is always located under the pliers.