That tool is for a multi-speed freewheels. You want this one. I have one of those so can measure dimensions off it if that's useful for people?
Would be good to know how thin it is between the splines. I went to 3 shops today and no one had a tool that worked.
Sorry for the late reply. Material thickness between splines was 0.6-0.8 mm.
@Lolo started
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That tool is for a multi-speed freewheels. You want this one. I have one of those so can measure dimensions off it if that's useful for people?