No, the length setting indicator on the side of the comb is declared in grades which correspondent to the declaration in millimetre/inches according to the user manual.
Setting 1 – 0.08 in / 2 mm
Setting 2 – 0,16 in / 4 mm
Setting 3 – 0,24 in / 6 mm
Setting 4 – 0,31 in / 8 mm
Setting 5 – 0,39 in / 10 mm