At least they don't make them from asbestos anymore.
My dad tells me about taking shop class in high school, and they'd be sanding down asbestos brake pads with an angle grinder to remove the high spots to prevent glazing. No masks of course.
OEM might not be asbestos but aftermarket asbestos containing pad can be bought. Who knows that the material does that's in them today?
I'm generally surprised by what I was exposed to at shop class, not necessarily asbestos but machines that could absolutely wreck a body let loose by a bunch of haphazard children. Blinding lights, kids sticking like 4 inches of iron into a hydraulic cutting machine and hitting go. A girl cut her finger off on a bandsaw.
My dad tells me about taking shop class in high school, and they'd be sanding down asbestos brake pads with an angle grinder to remove the high spots to prevent glazing. No masks of course.