Stop in for a cup of coffee

Wear a face shield then.
Really.
Stuff spinning at 10,000 rpm is crazy enough, Don't need to take chances with disks made at the lowest cost..

Not happy the air fitting I just got from McMasters was made in China. But at least its a simple casting - and only going be used at 30 psi or less. That's another thing I don't take chances with - high pressure systems.
Already found out today when the cutting disc split I need better stuff. :D