I wish we could tell you more about the nature of the project, industry or customer, but that is simply not possible.
What we can share is one rather exciting detail: the drilling of micro
holes which are only one tenth of a millimetre in diameter; or 100
microns. The challenge is additionally loaded with the fact that the
holes are drilled not perpendicularly, but at an angle.
Here is the actual photo of the drill, and photo of the hole in reference to human hair.