The K-Line Industries Tire Runout Gauge, No. AT32000, provides a rugged and sturdy tool that can easily and quickly diagnose irregular wear and potentially dangerous runout in a given tire. The gauge eliminates vibration and irregular tire wear issues, properly matches the high and low spots of the tire and rim runout, and locates tires that need to be reworked or discarded. The gauge is read by counting the lines separating the sliders; each line measures 0.01" of runout. Runouts of more than 0.08" require further inspection.