I just bought an old and heavy duty looking grinder. It's probably 50 y.o., very heavy and runs pretty smooth. Arbor is relatively small - 1/2" It's is so much better than a cheap POS grinder I got from Costco!
There is no any brand name or spec plate on this old baby. Is there any key features to help estimate RPM and HP on this grinder? I can post a picture if it'll help.
Thanks!