Brake pad gauge, No. 6596

The OTC brake pad gauge, No. 6596, allows for a definitive measurement of brake pads to determine remaining life. The unique design allows for measurement on the vehicle without the removal of any components in most cases (wheel assembly or brake caliper). Features a quick reference of brake pad condition via a color code scale. A barrel meaurement of 8 mm or more shows as green (no replacement necessary), a barrel meaurement of 3 to 8 mm or more shows as yellow (replacement soon), anda barrel meaurement of 3 mm or less shows as red (replacement now).