I have the Park tool, but I also have a double sided tool which I acquired so long ago I can't remember where. This tool has the larger splines on one side and the smaller on the other so that's how I know there must have been 2 sizes at one point.
@yoav started
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I have the Park tool, but I also have a double sided tool which I acquired so long ago I can't remember where. This tool has the larger splines on one side and the smaller on the other so that's how I know there must have been 2 sizes at one point.