A less common (but nonetheless standard) AF size which is available in o/end (Ministry of Defence surplus stock, dirt cheap), combination or cranked ring with various sizes at t'other end (Stahlwille, Facom and probably others at not insane cost), also as a 12 pt socket from Teng. Not sure if 'in a set' or 'individual purchase' for that.
Also at least one cranked ring on e-bay at 9 Aus dollars when I looked.
My own (and only) 25/32" is a well-made slim TruFit cranked ring (US made) acquired for next to nothing at a flea market 30 years ago, and has served on several occasions. Worth having, I think.
Some vendors pass off 20mm as being 'the same'; it'll probably 'do' but it's a fraction oversize as mentioned. A better feeling to have the correct item though, especially on things that matter or get visited regularly.