They have gotten a lot of play over at the bullet.
Looks like a good product.
Use a Uni-Bit, hold 'er square and don't be afraid to drill.
I'll start through some blue painter's tape with a normal, high speed 1/8" bit (sharp) for a pilot hole.
Centerpunching not needed or wanted....chipping hazard IMO.
It takes a bit to get through the ceramic so hold 'er steady.
Then switch to the Uni-Bit...mark where you want to stop on the bit with a Sharpie.