This is an upper & lower wheel cup set that will allow you to install the wheels on Lionel Post-War steam locomotives like the #2025, 2035, 2046, 2056, 2055, 2065, 645, 675, 685, etc.
Wheels cups provide two primary functions. First, when used in the STX system, they hold both wheels in perfect parallel position to one another. When wheels are installed using this system, they will be in perfect alignment and will not wobble as they rotate. Also, wheels cups designed for steam wheels are engineered to precisely "quarter" the wheels
These tools are precision made in CNC equipment and then heat treated for maximum strength and durability. The STX-375 tools fit all commercially available presses including our STX-360.