Review on 📏 GODESON Tire Tread Depth Gauge - Smart Color Coded Tool for Accurate Tire Tread Measurement, Tire Wear Gauge in 32nds (2-Pack) by Levi Stewart

I've used the penny method ("If you can't see the top of Abe, you need new tires" my whole life). And it worked fine. The only problem was that with the rear tires, where you can't rotate the wheels to view the entire tread, it was sometimes difficult to get an accurate reading on the INSIDE edge. Also, it only told you if your tires were good, not how much tread you had left. So I decided on a sensor. I found a lot. Some were expensive. I don't need that much gauge. These Gaudeson gauges were very reasonably priced and the issues described in the 1 and 2 star reviews seemed minor. Also, I thought it would be nice to have two - one in my shop, one in my tool box. I decided to try them. You arrived today. I have ones that show both mm and 32 inches. They are way better than I expected. As others have noted, the calibration was a little off. That is, pressing the meter against a hard, flat surface both showed fractions above zero, both by about 1/64 of an inch. To get them to zero I had to sharpen the ends of the blades a bit. on a diamond whetstone - I had to be careful not to sharpen too hard. Once the zero settings were achieved (three minutes for both operations), I checked her readings with a good caliper gauge for varying depths from an eighth of an inch to about a half inch. All readings matched those of the calipers to within a few thousandths of an inch. OK, I'm a perfectionist. Please understand I didn't have to make any changes to these gauges: RIGHT FROM THE PACKAGE, they would give me 1/64 inch readings. Who really needs more than that? I don't know if that will be true. They can weaken over time. If so, I'll find a way to tighten them up without rocket surgery. And if I need to, I can buy two more for about the price of a caramel frappuccino.