Here are some signs that your rotors may need to be cut:
* The rotors are warped or grooved.
* The rotors are too thin.
* The rotors are making noise when you brake.
* The brake pedal feels spongy or pulsates when you brake.
If you are unsure of whether or not your rotors need to be cut, you can always consult with a qualified mechanic. They will be able to inspect the rotors and determine if they need to be cut.
Cutting rotors is a relatively simple process that can be done in a few minutes. However, it is important to make sure that the rotors are cut properly, as improper cutting can damage the rotors and lead to premature brake failure. If you are not comfortable cutting rotors yourself, you can have them cut by a qualified mechanic.