MAKING ULTRA PRECISION TOOLROOM SPINDLES #2

Part 2 showing rotary grinding of the hardened parts. Discussion of many aspects of precision grinding in general. Showing my automated Harig grinder in action doing rotary grinding cycles. #practitioner_of_the_mechanical_arts Paypal donation https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W64WRAAGMA79J&source=url Support through Patreon https://www.patreon.com/ROBRENZ