What type of wrench is used to tighten or loosen nuts or bolts without serrated teeth?

The monkey wrench is specifically designed to grip and turn various sizes of nuts and bolts without the use of serrated teeth. It features an adjustable jaw that allows it to accommodate different sizes, making it versatile for a range of tasks. Unlike other wrenches that may rely on a more rigid grip or feature teeth for traction, the monkey wrench uses its smooth, flat surfaces to apply even pressure, minimizing the risk of damaging the fastener being turned.

Understanding the function of the monkey wrench in park maintenance is crucial, as it serves to efficiently manage a variety of hardware connections without risking stripping or damaging the materials. The other types of wrenches available, while useful in their own right, have different mechanisms or design characteristics that serve specific purposes that do not align with the intent of this question.