That's cool, we have some old tools at work that probably haven't been used in decades. Piston shaper is one and knurling tool.
My boss needs to upgrade everything, the tools and machines all work but they all have their quirks which I had to figure out. My boss didn't remember how to do any of the work except the head surfacer so he gave me a overview and I said I can figure it out.
I had line 2 line do my pistons for .001clearance during the rebuild process, Im glad I was told about it because that makes some other builds I want to do more budget friendly.