Which tool is best for turning odd or non-standard size nuts or bolts?

The best tool for turning odd or non-standard size nuts or bolts is a tool that can accommodate a wide range of sizes and shapes, providing flexibility and precision in gripping. In this context, a tool with a size designation of 10 likely refers to an adjustable wrench or a similar tool that is versatile enough to handle nuts and bolts that do not conform to standard measurements.

An adjustable wrench typically features a movable jaw that allows the user to adjust the size of the opening to fit various sized fasteners. This makes it especially useful for non-standard size nuts or bolts, which may not fit neatly into a specific socket or can be of unusual measurements. The range of adjustment provided by the tool marked as size 10 would facilitate effective engagement with a variety of fastening hardware, making it the most suitable choice for this task.

In contrast, the other tools may not provide the same level of adaptability, making them less effective for unconventional sizes.