Wow, that wall is some kind of impressive. I have a speeder in each drive size except 3/4". I have only used the 1/2" and only when I have had an engine on a stand. They are convenient for initially running down head bolts. I might also find some use with intake manifold bolts as well, though those bolts are not the first that comes to my mind when I think of a speeder. Half inch drive too me would feel like overkill even snugging up pan bolts, and for some reason never thought of grabbing and using a smaller drive size for that even though I easily could have..
I just use one so very rarely that use beyond the initial snugging down of head bolts or intake manifold bolts never enters my brain. I suppose I am just a creature of habit I guess.
The thing with speeders is you need so much elbow room to put them to much use due to their length.
I do have one short and very odd Snap-on speeder that I have never once used though it lives in my box. That speeder is a 1/4" and has a handle like no other 1/4" drive Snappy speeder I have ever seen. Perhaps it is very common and I am just unaware of that fact, but it's design seems odd to me. First, the overall length of the speeder is quite short. Second, instead of a traditional and familiar spinner handle on the end it has a piece of round steel affixed to the end where the normal handle would generally reside. The total diameter of that piece would not exceed 1/2" diameter and it has a 1/4" drive female hole in its end. That part does spin like that of a normal speeder and has no letters or other markings of any sort on it. The diameter of the majority of the tool appears to be what one would expect of a 1/4" speeder. The Snappy logo is somewhere on the tool, but not the handle. The total length of that odd piece of steel where the handle usually resides is something around 1 & 1/2" I suppose. The speeder was made as described and not a user alteration to the original design.
I don't recall ever trying to fit a 1/4" socket to the tool. Now I wonder if it might be one of the 19/32" era tools made during that era. Or, perhaps it was some special application tool special made for a specific purpose. I will never know. That speeder is odd and quite short, shorter than any other 1/4" drive speeder I have ever encountered with an approximate overall length of about 10" I imagine.