What tool is best suited for turning various size nuts and bolts?

The adjustable wrench is specifically designed for turning a variety of sizes of nuts and bolts, making it a versatile tool in any toolbox. Its adjustable jaw allows the user to modify the width of the gripping surfaces, enabling it to accommodate different sizes of fasteners. This adaptability is particularly useful in situations where the exact size of the nut or bolt is unknown or when working in tight spaces where standard wrenches may not fit.

In contrast, pliers primarily grip and twist but do not offer the same level of adjustability for fasteners. A screwdriver is intended for turning screws rather than nuts and bolts, rendering it ineffective for this task. Lastly, while a socket wrench is excellent for quickly loosening or tightening nuts and bolts, it requires specific socket sizes to fit the fasteners, which limits its versatility compared to the adjustable wrench. Therefore, the adjustable wrench stands out as the ideal choice for turning various sizes of nuts and bolts.