The glass can be drilled with special diamond drills, properly chilled with a continuous stream of water.
The drilling will be carried out by special CNC drill machine.
The holes should not be too close to the edge (also depending on the glass thickness) to avoid breakage due to the internal stresses of the workpiece.
Vertical Drilling Machine
Max. workable glass products: 2600 x 5000
Min. workable glass products: 500 x 300
Total Thickness: from 3 to 26 mm