I designed this holder system for the quick-change tap holders used in tapping arms. 
These are the tap holders with the built-in clutch/slip mechanism, often used to prevent breaking taps when threading.
This version is made for the Small -size tap holders. 
It uses the same modular idea as my 40-taper CNC tool holder system, so multiple holders can be connected together to create a larger storage setup.
The goal was simple: keep the tap holders organized, easy to grab, and protected instead of having them loose in a drawer or laying around the workshop. Like the ISO40 holder system, this design is made for real workshop use and can be printed from leftover filament. 
It is a practical storage solution for anyone using a tapping arm with quick-change clutch-style tap holders.