The Performance Tool W80628 is an ideal instrument for accurately gauging brake rotor thickness and tire tread depth in most vehicle types. Its metric scale and 1mm increments enable precise measurements, and the lever action floating jaw design ensures that the caliper can be taken off the rotor without losing the reading. This versatile tool can measure brake rotor thickness, even with an outer wear lip, and tire tread depth with its T-base and depth bar. Crafted from durable aluminum and steel, the W80628 is designed to endure the rigors of daily use in professional automotive settings, making it a valuable addition to any mechanic's toolbox.