4 ms·
A #80 tap drill is 3.4x bigger (.343mm) than the one they're showing in the video (.1mm). Which isn't to say they aren't impressive, but they're typically made
by mauvehaus 4y ago
A #80 tap drill is 3.4x bigger (.343mm) than the one they're showing in the video (.1mm). Which isn't to say they aren't impressive, but they're typically made of HSS, not solid carbide.
.1mm is about 4 thou (.004"), or the thickness of a piece of paper. I'm being a little loose with the numbers here, but they're in the ballpark.