0 results for “ hey, i bought the xtool ds1 pro 20w an few months ago.. last night i took it apart to clean it as routine maintenance. but when i went to put it back together i could not remember if the little arm bar used to gage the size of material from 0 to 6mm if it should be set back to zero or how that exactly works? if im using 1/4 bass would should i slide the arm up to 6mm  or leave it at 0 all the time