On the market there are several tools available but none that are universal for different things. Kadee does a tool for checking Kadee heights and Symoba does a tool for checking NEM socket heights.

This item has been designed to check the height of your NEM socket with an alignment pin, the other end is designed to attach different NEM couplings such as Tension Lock, Kadee, and Magnetic to check coupling heights.This is an ideal tool for your Hornby, Bachmann, Kedee, Hunt-Couplings, and other similar manufacturers couplings using NEM sockets.

This item has been designed for the OO / HO track.

The example in the pictures was printed on an AnyCubic Proton M3 3D resin printer.This item can be printed on a Resin or Filament printer, but a resin printer is more likely to be dimensionally accurate.Additionally, if you lose or break this tool you can easily print another.

I use AnyCubic Water Washable Resin for most of my items but use AnyCubic ABS Like Resin for anything that needs to be stronger and tougher.

use this link to join CGTrader and download my designs.

https://www.cgtrader.com/designers/PJD1974?referral_id=3218445