This parametric drill bit stand / hex bit stand can be customized to your needs.

You can set the number of rows and the number of holes per row - as well as the shape of the holes. 
For drills I like more the holes with 5 corners than the normal round shaped holes. 
(For hex bits it is obviously better to use holes with 6 or 12 corners...)

You can use the example files I attached here:
- Drill stand for 1.0mm to 4.9mm drills with holes with 5 corners or round holes
- Hex-Bit stand for 12 standard sized bits (6.4mm)
- Hex-Bit stand for 10 small sized bits (4mm)
...or you can customize it easily to your needs.

You have never customized a thing?
Don't worry, I optimized this thing for easy customization.
Follow the instructions in the last picture, install OpenSCAD (only 50MB) and customize it with a few clicks there.