What Are Wrenches? A wrench is a hand tool designed to grip and turn objects, usually fasteners such as nuts and bolts. The tool provides leverage, making it easier to tighten or loosen connections without causing damage. Unlike pliers, which rely on squeezing force, wrenches are specially shaped to match the size and type of the fastener, providing a secure grip and controlled torqu... https://jonard.com/hand-tools/wrenches