Oh, man, now I'm really confused!!! I have a set of snap ons that I thought were the same size, regardless of the "a" "b" or lack thereof.
I have oex 58, 42, 40, 28, 26,24, 22, 20, 18, 16 and 12.
I have what I thought was within the same set: "oex...b": 52, 36, 32, 30, 16, 14, 11, 10, 8...