Hex Key Alignment Tool - Hold a hex key on an M3 bolt

Works as advertised, will be using on the regular. Tolerance of bolt side is spot on and holds just right.

Make Print Specifics:
Ender 3 Pro - Dual Zed Steppers /w BLtouch 3.1
Marlin - 2.0.9.3
0.16mm layer height
Brim - 5mm width
Hot End Temp - 1st layer 200c / 195c remaining
Bed Temp - 60c all layers
Ensure Short and Very Short Layer Time settings will be in effect
Fillament : Overture PLAPRO Blue 1.75 +/- 0.05 mm

Additional Notes:
Infil % did not matter whatsoever. Gcode preview showed full infill due to nature of the small size of print.
Estimated 9m print time.
Actual 12m:22s print time
Sliced in SuperSlicer 2.5.3.7
Print managed by Pronterface using a Direct USB connection.
Seeing other metric bolt/key size variants would be of interest. (edited)