Adjustable wrenches come in many sizes but this one is quite rare. Slim on both sides, short length, opens about 1 inch. I use it for slotted nuts, small screws that I have a wrench for but not sure what size I need, for tightening smaller nuts used as lock nuts, etc. It's like my short 5-in-1 screwdriver or my 10 inch ring tipped snap hook, I take these with me everywhere. I think it depends on what you usually work on, but it's definitely required in automation. And again, it's just anโฆ