That's the idea, if they come full im bound to have the right tool for the job 98% of the time instead of improvising by using the wrong tool from multiple brands/sizes.
The 2 reasons I like the tool inserts (especially the Kincrome foam) is that its extremely easy to notice if a spanner or screwdriver is missing just by opening the drawers and it's also easier to grab the exact size required rather than sifting through a dozen spanners laying in a drawer. Even if they were to break they can easily be ordered from Kincrome.
That is quite true, hence why i'd only buy a big name brand. I've been delivering Kincrome tools for 7yrs to various shops in the west and from talking to the staff at these shops not once have they ever had Kincrome knock back a warranty repair/replacement.