Originally Posted by
ThermionicScott
Dumb question... I don't have a lot of experience with discs, but how does a 2mm thick rotor become "razor-sharp"? I do have some experience with razors, and they are quite thin.
Wouldn't rounding the outer edge a bit keep it from getting sharp during a reasonable service life?
It doesn't, but if you spin it fast enough it will cut or tear through soft tissue.