When should an adjustable wrench be used?

An adjustable wrench is specifically designed to accommodate fasteners of various sizes by allowing the user to adjust the width of the jaws. While it can be useful in different situations, it is particularly advantageous to use it when other types of wrenches do not fit or when a fastener has a unique size not readily matched by standard fixed-size wrenches. This flexibility makes the adjustable wrench a valuable tool in many scenarios.

However, this versatility means that it may not be the best choice for every application. Using a properly sized fixed wrench is often preferable when available, as it typically provides a more secure grip and reduces the risk of rounding off the fastener. Thus, while the adjustable wrench can be handy, it is best utilized when no other options are suitable, validating the importance of knowing when to choose this specific tool.