I have a few drill sets, one is a 29 piece TiN from HF (bought before I knew much) that are serviceable, but every time one breaks or gets mangled, I replace it with a bright drill from either Triumph or Precision. The USA ones certainly outperform the others, but I figure that I don't do gobs of drilling, so I can figure out what I use most and replace them slowly.
I also have a 115 pc black oxide set of unknown vintage (was given to me, but with no markings). They seem to work just fine.
I also have a 115 pc black oxide set of unknown vintage (was given to me, but with no markings). They seem to work just fine.