I have long promised myself a decent set of tools for working on espresso machines
You can get away with ill fitting/poorly sized tools for residential building work where most of the fixings you are putting up are single use, or not expected to be taken apart on a regular basis
But for any kind of machinery where it will need some level of maintenance over time, i.e. bits need to be undone and redone, tools that are acurately sized, square and true in their shape come into their own
Without these a few cycles of taking a fitting on and off will damage the head on that component, which will necessitate it being replaced prematurely