Features and Benefits: * Special locking pliers clamp securely to any convenient object * Range: 1" * Graduations: .0011" * Reading: 0-100 This checks ball joint wear and disc rotor run-out. Also checks gear backlash, valve guide wear and camshaft wear. With optional attachments checks tire and wheel run-out. Eliminates vibration problems and false readings by mounting directly on spindle. This set comes packaged in plastic blow-molded case.