KDT2116 Features: -Checks measurement without removing caliper.-Gauge measures the brake lining that remains on bonded pads in fractions from 1/16-Inch to 5/8-Inch in 1/32-Inch graduations Gauge measures the brake lining that remains on bonded pads in fractions from 1/16-Inch to 5/8-Inch in 1/32-Inch graduations. Tool checks measurement without removing caliper..-Disc Brake Lining Wear Gauge..