I had decided to collect (at least) one of every drive size ratchet Snap-on ever made. I'll admit when I made the decision I was not aware of how difficult it would be. It took about 10 years to get them all and the most elusive for me was 1 1/2. They do show up but can be expensive and I have limited funds to work with. The 7/8 was also difficult to acquire and was the last of the group.
Top to bottom: 1/4, 9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1 and 1 1/2. The 3/4, 1, and 1 1/2 are shown without the handles. The 5/8 and 7/8 are the same ratchet with different drive plugs. I have no idea why some PO painted the 5/8 red.
Snap-on has made sockets in larger sizes but never ratchets they were designed for impact tools and they also made a 1/8 drive but again never any ratchets in that size.