wrote ...
On Thu, 11 Aug 2011 08:04:45 -0400, "Jim Wilkins"
wrote:
...
Michael Koblic,

These wheels are hot rolled steel cut on a CNC plasma cutter.
https://picasaweb.google.com/KB1DAL/...44352319116898
They are the scrap so I had to fill in the starting slits and turn down the
resulting lump of weld..

The outer crust is so hard a carbide insert only polishes them.

jsw