The Fowler X-Tread Tire Tread Thickness Gage 54-225-500-0 has a measurement range of 0 to 1"/25mm with a resolution of 0.0005"/0.01mm/1/64", and is designed specifically to measure tire tread depth. The LCD screen displays in inch, metric, and fractions (in 1/64" increments). The spring-loaded gage has a hold-measurement button for ease of use and comes with a vinyl holster. This tire tread gage is suitable for precise measurement in a variety of manufacturing and mechanical engineering applications. Depth gages are typically used in manufacturing, machining, and mechanical engineering. This product has a 1-year warranty offered by Fowler High Precision. Fowler, an American company, manufactures inspection and measurement instruments such as electronic indicators, calipers, bore gages, and micrometers. The company, founded in 1946, is headquartered in Canton, MA.