There is no single method for checking tire tread depths, and while some are more accurate than others, all are great at ...

Overall, we found the SAFELIFE Digital Tire Tread Depth Gauge to be a reliable and accurate tool for measuring tire tread depth. It’s easy to use, easy to read, and easy to carry with you ...

If your tires are only partially worn, find out how much. Stick a tread-depth gauge (about $5 at auto-parts stores) into each of the grooves on all four tires, as shown in the photo below.

[John] found that a digital tire tread depth gauge can work well for this application. Many of these gauges use the same electronics as the cheap digital calipers, for which the serial protocol ...