As easy to read as a tire pressure gauge ... a quick way to accurately measure height of rail from top of tie for installation of derails, switch point guards, spill containment pans, etc. Gives you the 90% accuracy of a carpenter's square with the convenience of a vertical floating scale. The scale read heights from 5 in. to 9 in. with 1/16 in. accuracy. Gauge stands clear of tie plate and is self-supporting. Size is 11 in. high x 17 in. wide. Handle is made of steel plate. Elevation scale is etched aluminum. Weight 5 lbs.

LJ-GM-B Mechanical rail wear gauge is mainly used to measure the vertical wear and lateral wear of the rail. The reasonable design makes it convenient operation and intuitive reading.