SPI Electronic Tire Tread Depth Gage Designed for depth measurements of shoulders, small bores or inside grooves. Features include... Large LCD Display Zero-set at any point Stainless Steel Measuring Rod Specifications include... 0-1" / 25mm Measuring Range 0.0005" / 0.01mm Resolution +0.001" / 0.025mm Accuracy Includes Certificate of Calibration
