this is a personal project, the bigger tool is standard measurements going from 30mm to 20mm at 1mm increments, then from 20mm to 1mm it is 0.5mm increments

the additional smaller gauge is exact measurements for a personal project

(From right to left, the gauges measure 28.65mm, 23.87mm, 15.28mm, 14.32mm, 13.37mm, 11.46mm, 9.55mm, 6.68mm)