GearWrench 3962 Brake Lining Thickness Gauge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Color Coded Brake Gauge Identifies Thickness Levels for Brake Lining Inspection</li><li>Metric - 8， 10， &amp; 12mm (Green)， 4， 5， 6mm (Yellow)， 2 &amp; 3mm (Red)</li><li>SAE - 0.3150 to 0.4720" (Green)， 0.1575 to 0.2382" (Yellow)， 0.0787 to 0.1181" (Red)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/419tQZJbpDL.jpg" noproxy>