Kadee #813 On3 Multi-Purpose Metal Coupler Height Gauge

Kadee #813 On3 Multi-Purpose Metal Coupler Height Gauge     #813 Multi-Purpose Coupler Height Gauge - On3 Scale A must have tool for gauging correct coupler, trip pin, and permanent uncoupler heights for achieving trouble free coupler performance. "Takes the guess work out"Coupler Height Gauge:1) Provides instant visual reference of proper coupler height2) Gauges car underbody height from the rail3) Gauges track width (N.M.R.A. Standard)4) Gauges wheel width (N.M.R.A. Standard)5) Gauges proper height of trip pin