Leaderboard

Looks like both have metric spindles. The metric spindles have a 5/8" nut on top holding the pulley with 17 mm spindle with 6203 bearings 40mm OD, 17 mm ID, 12 mm thick bearings with a 3/4" nut holding the blade.

I've survived many things in my life that made me wonder how, but usually the scary part was out of my hands. But so far I am still here, thank God. Bumps, burns, stitches. No major injuries other than my pride. @Mickwhitt beat me to it though. We always referred to occurrences like the video of natural selection in action... That guy needs to stay away from any machines more complex than a hair brush.