Icepick:

I use these quite a bit. I bought a set about 5 years ago simply for
the size. They are good for having the exact size you need on
occasion, and they are easy to sharpen with the Dremel because the
steel is pretty soft. I really only use these for hobby stuff.

But for door hinges, etc., (Blum style Euros) I did buy the exact bit I
needed. It did not escape me that the American made Forstner bit for
cab hardware cost as much as my "box 'o bits".

RL