Originally Posted by
crankholio
That's interesting to know about the threading. So I'm guessing the maillard freewheels that showed up on schwinns used ISO threading?
Early English thread Maillard freewheels had a small rectangular mark on the back of the body to indicate thread spec. Later production was explicitly marked with thread spec: "1.37 x 24 BSA"
The oversize schwinn tool you have there looks like it might be 24 spline...perhaps it's a slightly different look of the same tool I posted on the left?
This link has a little more info on the left tool, and mentions it's used on some schwinns.
Yes, the one on the left in your picture appears to be the oversize remover used by Schwinn.
The tool I posted on the right I can find almost nothing about.
That one is a mystery. The ramped teeth don't match any freewheel spline pattern that I am familiar with.