Brakes Snatching

Problem with brakes too harsh with only slight pressure on pedal. Examined front disc pads which seemed to have a good degree of wear left and calipers moving freely. Rear drums also seemed normal and cleaned dust out. Problem continued but eventually cured by fitting new front disc pads. I was surprised at thickness of new pads and obviously originals were much more worn than I had judged. Very relieved they cured problem.