Electronic Digital Display Tire Pattern Depth Caliper $ 20.31 Product information: Tolerance:0.02mm Operating temperature: 0C to 40C Battery: LR44 button battery Features: 5 minutes without automatic shutdown Material: 4CR13 stainless steel Accuracy:0.02mm Dividing value: 0.01mm Dial diameter: 44 * 17mm Measuring range: 0-25mm Packing list: 1* Tread scale Product Image: