Milton 448BK Tire Tread Depth Gauge - 100-Piece Box for Professional Mechanics & Auto Shops | Perfect for Vehicle Safety Inspections & Tire Maintenance

Works as intended. It checks the tire tread in 32nds of an inch up to an inch from 1/32 to 32/32. The gauge is sleek and easy to use; and it does not feel cheaply made. Definitely worth the extra couple of dollars--I only just purchased it but I can tell I will have this a very long time. Also, the edges on the support that the tire rests on are fairly sharp... If you're handy you'll find a use for it, I was able to use it as a box cutter for my other Amazon packages.