Hex Hole Design Aid/Calibration

Note: This hole sizer is one of three I have made. Get all three at https://www.thingiverse.com/thing:5352751

Hex holes 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 thing.
Thickness of this thing is 3mm. SolidWorks file included.