What is the recommended tool to reduce marring on bolts or nuts?

Using a socket wrench is recommended to reduce marring on bolts or nuts due to its design that allows for a complete grip around the component. This type of wrench fits snugly over the entire head of the bolt or nut, distributing the force evenly and minimizing the risk of slipping. When force is applied through a socket wrench, it prevents damage to the corners and edges of the bolt or nut, thus maintaining their structural integrity and allowing for proper torque application.

In contrast, other tools like adjustable wrenches or pliers can create uneven pressure and increase the likelihood of marring. Adjustable wrenches, while versatile, can slip if not properly secured to the nut or bolt, leading to potential scratches or distortions. Pliers, while useful for gripping, do not provide the same secure fit and can easily mar the surface. Torque wrenches are designed specifically for applying a precise amount of torque and, although helpful in preventing over-tightening, they are not primarily designed to minimize marring like a socket wrench is.