Thread: Carbon fiber drilling problem

My first attempt to make carbon fiber scales. Please have a look at these photos (both scales, both sides).
Drilled in two stages first 2 mm diameter and second time 5 mm. Hand held drill (only have this one) low speed and low pressure. Fibers looks like they are torn.
Both drills was brand new, sharp and a good quality ones, these drills are for metal.
Any tips how to avoid it?