Open-End Wrench

Open-end wrenches have an opening in each end that fits a bolt head or nut. The opening in each end that fits a bolt head or nut. The openings of an open-end wrench which are parallel to each other and are normally angled at 15 degrees to the handle. This angle allows you to turn a nut even when the space for the handle is severely restricted. However while the 15 degree head angle is standard, there are many other angles available. For example, one type of open-end wrench has the same size opening on both ends with one opening angled at 30 degrees and the opposite opening at 60 degrees. Figure 1 shows the example of open-end wrench.

(Figure 1)