I think you have the right idea Stoney.
I have a lot of tools in my tool boxes but I only need a few of them at a time for the jobs I do.
It is just that each different job might call for a slightly different selection of tools.

If I just had to fix a leaking sink then I could make a tool kit with just the tools for that job and no extras.
However it would mean I was hooped if I had to do anything different because I would only have what was needed to fix a sink.

So I have a slightly bigger kit that lets me have a chance for all sorts of general repairs.
Not every tool I would like, but the tools that I should have available at the very least.