Yes pitch of screws is given in the link. 2mm pitch for the metric machine, 20tpi on the imperial. There is no conflict there are 80 divisions of 0.025 so as per the link 80 x 0.025 = 2nn per turn
0.025mm increments will allow for more accurate positioning than 0.1mm divisions. Machine's handwheels are not really big enough to get 0.01mm divisions but should be possible to make up a bigger ring if needed to slip over the existing.
The only thing that I don't like about them is that they number the divisions and have grouped them in multiples of 5 and 10 rather than showing the actual distance represented. Would be nicer if every eighth one were dimensioned 0.2, 0.4, 0.6………….1.8, 0. If it were my machine I would seriously consider buying the dials for a SX2.7 and making a simple sleeve so they could be fitted over the ones of the X2 that way you get 100 divisions each 0.02mm and numbered to represent distance not number of divisions.
Edited By JasonB on 08/08/2021 13:31:48