We threw my car up on one of the four point hoists and took off the front right tyre to inspect the brake pads, and routers. The reason we did this was to check the thickness of the brake rotors, we used a tool called a micrometer, it can accurately measure the thickness of the rotors. A micrometer uses 3 different types of millimeters, it uses whole millimeters, half millimeters and quarter millimeters. We also used a dti gauge to check the rotors its measurements were also in millimeters but in 10th's. The reason we were doing this was to check the rotors to see if they were warped ( worn unevenly ), which they had.
While we did that we also looked at the brake pads to check if they had also worn uneven and how thick they were. To do this we used a vernier gauge ( one side was 4.95 the other was 5.24 ). We did these checks on my car cause i suspected that the front brakes needed replacing.
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