The Performance Tool W80628 is the perfect tool for accurate measurements of both brake rotor thickness and tire tread depth on most vehicles. Its metric scale and 1mm graduations allow for precise measurements every time, while its lever action floating jaw design ensures that the caliper can be removed from the rotor without losing the reading. With the ability to measure brake rotor thickness, regardless of the presence of a wear lip on the outer edge, and tire tread depth with its T-base and depth bar, this tool is a versatile addition to any mechanic's toolbox. Made with a durable aluminum and steel construction, the W80628 is built to last and withstand daily use in professional automotive environments.