One particular tool used in the industry for many years to assess measurement instrument repeatability and consistency across several inspection agents is the Gauge Reproducibility & Repeatability (GR&R) tool. This paper will investigate and discuss the specific application of the GR&R tool to evaluate tire final finish machine measurement consistency. As it turns out, there are some issues with how most tire companies use the GR&R tool and special consideration should be taken into account when applying these tools to final finish tire measurements.