If you want to use a hand drill or Bit brace, I doubt there are any "real " tapping bits made for a bit brace, but you need to be very cautious about moving the drill, it must remain stable. That is why I always encourage new producers to use a cordless electric drill, and an official tapping bit. Also, drill straight in and out, one motion without stopping the drill. Then if there are still drill shavings in the hole, don't blow on them, rather use a twig to scoop them out, and use that twig only once then throw it away. Using a tapping bit properly you will have very few that leave any drill shavings in the hole.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.