We have had that same sort of problem here in the past, so we are diligent about buying quality stuff.
of course, getting this drill was all in the name of saving time and $, and look where i've ended up. i'm sure i've broken more tooling than saved machine time. >_<
the drill is an MA Ford Twister drill, with a 145 degree point.
and yes, the drill still looks like new at the tip.
and Hu, that's a good point. though none of the 20 or so parts that were made wilth just the drill have any chip, i'll try putting a quick dwell at the bottom to see if that helps, once i get more boring bars.
there is also a small (.150) thru hole that goes in before the bore, i figured that this would help clear any chips that would get in the way.