I've been drilling stuff as an adult for a LONG time now. And I have what we all have; a few drawers or boxes full of drill bits from over the years. Funny thing is, other than my concrete bits (which seem to always work when asked to), I never trust my "Box o bits" and always buy new ones when there is an important project to be dealt with.

Why do we (men) hang on to all those old, unreliable bits? Why can't we suck it up and throw the [censored] useless used bits away? Why must we continue to horde them as if they'll someday magically be sharp and useable again? I dunno. Do YOU know??

I realize this is a question we probably prefer not to deal with or answer, but maybe theres a shrink out there with a plausible answer........