Camber nut size

Going to check my camber none of the garages want to do it so going to have a go myself
Whats the spanner size to adjust the front camber and does it need to be a thin one

 

36mm, most should do it but a thick one won't get in there.

 

I've got a viscus fan spanner for this. Nice and thin

 

Yep, I think mine was for my old Ford Sierra,works a treat!