Last year I made a few purchases of Taps and Dies for cleaning/chasing threads on the Matchless and other projects. This is partly helped by my job as I am now a lot more aware of the array of threads used on things.
I ordered the bits from Tracy Tools down in Devon and ordered them loose so not in a case, I have seen sets in cases at shows but always disappointed about the standard of the taps and the cases.
So I made my own cases,
I have some gaps, that is because the tap normally come in sets of 3, Start, Second and Bottom but the sets I bought only had the Start and Bottom taps. The inserts for the boxes are basic and loose. Once I am happy with it all I might give it a varnish but this is just version 1.