Just to be clear, just because we have 1 example of somebody ruining a whole pile of brass does not mean everybody who anneals with a drill, socket, and torch is an idiot and bound for failure and going to blow their head off and blah blah blah.
Before things go down that road again.
OP clearly stated he was heating them till glowing red hot, because he got bad information on how to anneal, not because he as an idiot, or because he had a death wish. It was simply the result of bad information.
So we dont need a bunch of armchair experts demanding that everybody ABSOLUTELY MUST go buy the exact same brand of annealing machine they have. While I'm sure the machines make it nice, they are based on time in the flame In the exact same way my drill holding a socket in the flame is. The difference being possibility of variability in where the flame contacts the case in the handheld method. But if we can hold a rifle steady enough to shoot well enough that we think we need to anneal our brass, I would venture to say we should be capable of holding a case in the same spot within the flame. Then it comes down to how you determine how long to hold it there. And that is something you have to determine with either method, typically tempilaq, and then experience from there.
I guess the salt bath guys can pipe in and say their method is best, which I wouldn't argue, but that comes with a different set of issues.
My sympathies to OP, the fear of doing exactly this kept me from trying, then I started getting split necks so I had some perfectly ruined brass to try on and some great guys on here to help guide me. I was trying to be cheap and impatient and didnt want to get tempilaq at first, but it is really the key for somebody just getting into annealing without an experienced mentor standing over your shoulder. And despite my statements above, I have nothing against annealing machines, I just anticipate a few morons stopping by to say we lower life forms without them don't deserve to breathe the same air as them. But most people here are awesome like the few who have already posted.