A spanner wrench is specifically designed for which purpose?

A spanner wrench is particularly designed for the purpose of tightening or loosening round nuts that have notches or are faced with other specific shapes. This tool is effective because its design allows it to securely fit onto the notches of various types of nuts, providing the leverage necessary to tighten or loosen them without slipping. This connection ensures that the tool engages properly with the nut, minimizing the risk of damage to both the nut and the tool.

In contrast, options relating to cutting materials or breaking apart fittings do not align with the intended use of a spanner wrench, which is focused exclusively on turning fasteners like nuts and bolts. Similarly, the function of tightening screws falls under the category of screwdrivers and not spanner wrenches, which are specifically engineered for round nuts and bolts. This clarity in design and purpose makes the spanner wrench a specialized tool in the toolkit of professionals engaged in mechanical work and maintenance.