What Are Box End Wrenches For

The purpose of a wrench is to turn a bolt head or nut. … A box, or closed, end wrench is used where there is room to place the wrench mouth around the fastener. Box end wrenches are available in 6- and 12-point versions to match the number of sides on the fastener.

What is a wrench with one box end and one open end?

Combination wrenches have an open-end jaw at one end of the tool and a box-end wrench of the same size at the other. As there are many situations where one or the other type simply won’t work, combination wrenches can be handy indeed.

What is socket used for?

A socket attaches to a turning tool to tighten or loosen fasteners, such as a nut or bolt. Sockets are typically sold in sets with a drive tool. Sockets are tools used to tighten mechanical fasteners. They fit over the head of the fastener to provide torque.