Thanks for the info on that freewheel. It will go into the parts bin for my kids to wonder about after I am gone. I probably won’t buy that freewheel tool when I have better freewheels. That spacer is 1 mm behind the freewheel also. As Juvela said a standard spaced 6 probably won’t fit. Looks like plenty of room at the dropouts, but eyeballing it looks like the chain would hit the diagonal frame stay.