Date on wire cutters folding 1980. Adjustable spanners may be the tools of the devil but they save a lot of time if you are working any distance from a tool box or at height, or down a hole. They are handy for holding 2 pieces of metal in place to get a tack on, very versatile. You may find 7 nuts and bolts the same size and one different some distance from a correct spanner, gives an option. I have scotch locks in a box somewhere but have never used them. Maybe one day, never say never. A rusty nut is an adjustable nut.