On Feb 2, 6:52*am, mm wrote:
Is it harder to drill holes in metal when the metal is cold?

For some reason I think so.

I have a few holes to drill in 1/8 or 3/64" steel, outside, and it's
about 30 degrees most days lately. * They are going to be awkward to
drill in the first place, so I don't want it to be harder to do, and I
can delay it to 70 degree weather.

That's no big deal but now it's more important to me as an academic
question.

In a word, no. It would have to be approaching red heat to soften
noticeably and that would ruin the drill bit.

Harry K