You can cut some rotors,depending the type&condition.I see alot of rotors so rusty they can not be cut.Most gm rotors chatter when you try to cut them.
Many new cars have rotors that are surface hardened. It makes the initial surface last longer and the softer core helps reduce noise. If a tech cuts through the hardened surface the rotors will die quickly.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
