No. 80 bits - good source?

[ezdays]

As Wayne told,
buy this tiny drill bits per dozen or more. They are prone to break because of their tininess. And clamp them into the drill chuck only at the exreme end. They are long, but they also can flexing better and not breaking.

And wear eye protection when drilling.


Lutz

Used to buy numbered bits by the boxes for drilling circuit boards. They were carbide and would stay sharp where other's wouldn't. Big issue is that they all had 1/8" shanks and would fit in a Dremel and they would frequently break right where they shank changed sizes if the tool wasn't fixed in Dremel drill press. Beware of those for anything other than drilling PC boards.