The damaged disc surface will cause reduced braking performance, vibration and squeaking noise when you brake. Cutting or skimming a layer off the discs using a lathe machine is the cheaper option ...

You can’t over skim, says Mugaga, because there will come a point when even if you try to apply the brakes, the car will struggle to stop Is disc skimming necessary? - New Vision Official ...

My 2006 Mercedes ML 320 CDi has squealing brakes which vibrate when I brake suddenly. We have just replaced the pads but the discs seem to be the problem. Africa Edition Kenya Edition Uganda ...