20-Jan-2010. Filing the factory bevel on the end of the boiler. The bevel is put on the pipe at the time of manufacture so the welders (when joining it to another pipe) do not have to field-grind the pipe for welding. Unfortunately for me, a bevel-edge does not make a good mating surface for the smokebox, so we will have to grind it down. I would chuck it up in the big lathe except 1) the firebox won't clear the ways, and 2) the steam supply line would get in the way.