Test print - verification of dimensions of holes

Simple pattern you can print to verify the actual diameter of a printed hole.
The pattern includes the holes with the following diameters:
2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9. 9.5, 10, 11, 12, 13
Note that the size of the hole can change as you change filament, wall line count, in-fill pattern and a few other slicer settings.
For best results print this pattern with the filament you will use to print your model using the same settings you intend to use for the model, test holes in the pattern for fit with fasteners you intend to use and adjust your CAD model as needed.