Originally Posted by RichardV6
The only variant that springs to mind is a crows foot spanner, useful when access is tight.

Thanks for the heads-up Richard.
Somehow in my sheltered life I had never come across these.
I've just bought a set of ten (10mm - 19mm / 3/8" drive) on the Bay for general purpose use, for under £15.

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Peter
2009 3-litre Roadster "Ivor", royal ivory / green