Hex and Round Hole Sizing and Calibration Tests

Print these tests using your favorite printer settings.
Use them to determine what size to use in your designs for the fit you want.
Typically, the actual sizes of the holes when printed will differ from the size given in the design.
Find the hole that fits your part and use the designed size of that hole in your new design, or use it to test and fine tune your slicer's XY expansion/contraction settings. 

Round holes with designed sizes ranging from 1.0mm to 8.9mm, and round holes with designed sizes ranging from 9.0 to 12.9mm in 0.1mm increments. Thickness is 3mm.

Hex holes with designed sizes ranging from 4.0mm to 8.9mm (inscribed circle) in 0.1mm increments. Find the proper design fit for hex nuts, hex bolt heads or other hexagonal parts based on your printer's output of this print. Thickness is 3mm.
Hex holes are in 5 rows of 10 holes each and their designed sizes are as follows:
Row 1: 4.0mm to 4.9mm in 0.1mm increments
Row 2: 5.0mm to 5.9mm in 0.1mm increments
Row 3: 6.0mm to 6.9mm in 0.1mm increments
Row 4: 7.0mm to 7.9mm in 0.1mm increments
Row 5: 8.0mm to 8.9mm in 0.1mm increments