The Railroad Limit Wear Gage is a tool designed to measure the maximum flange thickness and throat radius of railroads, with a focus on maintaining and improving the quality of the tracks. Made in the USA, this product is a valuable tool for transportation and collectibles enthusiasts who are interested in railroadiana and trains. The gauge provides accurate readings to help optimize the performance and lifespan of the railroads, making it a practical and essential tool for those in the industry.