Now it the power goes out, how else would you drill a hole? Ok, with a brace drill, or egg-beater drill, or one of the many other contrivances. Having a set of bites right in the handle is handy. Somewhere under the bench is box of spares, 6, or 7, may a few more. On the bench is my trusty Goodell & Pratt push drill, plus my most recent purchase, that is cleaned and oiled, ready to be tried out. I love to show newbies how to get at the bits.