Proto:87 Wheel Form Tool
I received this tool from Andy at the
Proto:87 stores in late September 2003. The tool is used in a
lathe (such as a Sherline) for turning wheels down to proto:87 profiles, or
creating new wheels to that profile. I have not yet had a chance to try
it out, but here are some photos of the double-ended 1/4" lathe tool.
Here is the full tool. You can just see that the end on the top-right is
also formed to the Proto:87 profile.

Here is a closeup of one of the two cutting edges. You can clearly see the
perfect Proto:87 wheel profile. I wouldn't even know how to begin cutting
something so small and critical in HSS like this.

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