Honestly I would get 7/16 instead of 11 because 11 isn’t really a common metric size at all and 7/16 is around 11.1 mm I did the math because lang thread chaser tools are all sae even the metric ones got sae base and my 11 mm sockets don’t fit.
so I swapped my 11 mms for 7/16 in my metric kit since if I did happen to come across a 11 I think 7/16 would fit but not the other way around. And I don’t work out of a huge cart so don’t always have any sae handy tbh