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@jmorris I guess maybe less likely to break from chip packing? They readily evacuate a long string chip out the top. The cheapest ones are still cheap of course. I use tap magic most of the time for tapping, too.

I'm trying to remember the smallest I've done. I own an M2 spiral flute tap and it's not broken, but I do so little that's smaller than M3. And the M2 spiral flute tap I own isn't the highest quality.

But yeah, spiral tip should be stronger than spiral flute, and eject the chip ahead of it as long as you aren't tapping a blind hole. (I do plenty of blind taps which is part of why spiral flute taps are my go-to one-and-done.)