1970 A65 Fork rebuild

[watts]

I have the shuttle valve type, which I have rebuilt.  Is there a tool or method for tightening the retaining nut in the bottom of the stanchion. It is slim and hard to get good contact with it, I have several girling type c-spanners, but wondering if I was missing something.
Or is just a case of hiding it with a drift?

Thank you.

[Gup holland]

I managed it  with a thin socket with a 1/4" drive, don't remember the size of the socket

[watts]

Unfortunately its not a nut, its like this
Thanks

[Gup holland]

Sorry for the misunderstanding, I did it with a plier , the nut was already ruined
Make a spanner out of metal, or a drift If necccary.

Thought the bolt in de bottom leg...........