Recently, the Magna-Lock chuck on our 84" Mattison grinder went down.
We acquired the grinder in 2018 and, according to our records, the chuck had not needed repair for over 50 years, since it was first produced!
After having to pry the chuck off because it has been on for so long and fully repairing it, our grinder is back up and running. Check out a short video of the process!