Tiny ruler for screwdriver tip

I made this for doing adjustments on the industrial printers I service. The adjustments are anywhere from 1 to 3 mm but a human hand with a typical ruler or gap gauge will not fit into the space. Fits on the end of a long Phillips screwdriver. Print the screwdriver mount from TPU and the ruler from PLA or PETG, then glue together. For good visibility, do a filament swap with contrasting colors at the layer of the ruler where the vertical slots begin. Small increments are 1mm and the large increment is 2mm. Does not need any supports.

Cut down to 1cm and filled in the hanger hole.