A metric socket set is a type of electrical connector designed to connect two or more wires together. They are commonly used in home wiring projects, such as installing new outlets or switches. A metric socket set consists of a series of interchangeable parts that allow you to easily change the length of the wire. This allows you to connect multiple wires together without having to cut them. Sockets come in two types: standard and metric. Standard sockets are commonly found in homes, whereas metric sockets are usually used in industrial settings. Uses of sockets: When tackling a particularly hard or rusty fastener, having a well-equipped socket set at your disposal usually gives you the ability to choose a socket that fits perfectly over (or into) a nut or bolt head in question. Most wrenches will fully encircle nuts or bolt heads, allowing them to provide a much better grip when trying to turn them. This also minimizes the chances of a loose socket slipping under greater force, wh