A stackable Gridfinity 1x2x3 bin with a raiseable cassette containing 5 threaded pins / plug tabs / screw taps with the following diameters: 3, 4, 5, 6 & 8 mm.
The cassette can easily be raised for easy access or lowered for compact storage.
There are cassettes for storing the taps with the cutting edge out or in (i.e. protected) depending on your preference.
For the cassettes
After installing the cassette in place, install the lock pins to keep the cassette in place.
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Attribution
The base box is generated with the Fusion 360 GridfinityGenerator, https://apps.autodesk.com/FUSION/en/Detail/Index?id=7197558650811789.
The author remixed this model.
Added lock pins to the hinges that keeps the cassette in place and improves the tilting so that the taps are kept in place.
Added alternative plug tap cassettes: