- Color coded to identify thickness levels for quick inspection of brake linings - All steel construction, durable and long lasting - Each blade has both SAE and Metric measurements - Metric: 8, 10, 12 mm (Green); 4, 5, 6 mm (Yellow); 2 and 3 mm(Red). - SAE: 0.3150 to 0.4724" (Green), 0.1575 to 0.2362" (Yellow), 0.0787 to 0.1181" (Red). - These identify if the brakes are still good (Green), should be serviced or are past due (Yellow), and must be serviced (Red).
