I broke an import slitting saw arbor today. Good riddance, I hated the POS anyway. It was the 1/2-shank, multiple-size type, and had terrible runout. Always had to fiddle with it to get the saw running close to concentric with the spindle. No more! I made a dedicated one for the saws with 1" holes. It works MUCH better, and I'll be making the other sizes as needed.
Anyway, looking at the busted one, I can't figure out how it was ever put together! It's just a matter of curiosity, now, but does anybody know how these things are made?!
Jim