Hurrah for that long-distant day when I bought a set of screwdriver bits with far more pieces than I expected I would ever need to use. It turned out that my newly-purchased Walsall wheelbarrow required a Torx T40 bit along with various spanners (all covered by adjustable wrenches) and I had just the bit I needed.
I think that was probably the first time it has been pressed into service but it worked well and I now have a nice, sturdy barrow to take down to the allotment on my next trip there.