The definition of sibilance is when something has an s or sh sound. An example of sibilance is the hissing of a snake.
A wrench (or spanner outside of North America) is a tool used to provide grip and mechanical advantage in applying torque to turn objectsâusually rotary fasteners, such as nuts and boltsâor keep them from turning. In Commonwealth English (excluding Canada), spanner is the standard term.
This is an open-ended wrench. It can be used only from one end. The size of the opening is not fixed. It can be varied based on the size of the nut and bolt. These can be used on nuts and bolts of multiple sizes, as opposed to the earlier seen wrenches where one unit can be used for a single or at the most two sizes. However, such types of wrenches are difficult to use in remote or confined areas.