"Existential Angst" fired this volley in
:

I'm thinking of a drill that could drill holes in metal doorbucks that
are also lined with concrete.
Is there perhaps a way to sharpen/grind a masonry bit so that it
could
also get through 16 ga steel, mebbe some wood?

Of course you can, but why not just take some care with a common twist
drill, and not drill too far past the buck? Use a stop if you're not good
at stopping it by hand.

It'll take a lot less work to tweak the edge on a HSS bit after you buzz
it a little on concrete, than it will to put the proper edge on a masonry
bit, which still won't cut all that well in steel. An as-ground masonry
bit will go through wood just fine, although its flutes will load up
fast.

LLoyd