
This thing really saves time! I used to have to pull the wheels a lot when checking the brakes, but this gem allows me to measure the rotors without removing the wheels. It's easy to calibrate and use, and even has a HOLD button to record your reading in situations where you need to detach the mic to take a reading. Every mechanic should have one of these. EDIT: Wanted to mention a free product. Get the Lisle 81850 Brake Pad Gauge to use with this micrometer. Removing the wheels to check the brakes is a thing of the past.