Er... ah Jurgen...:) 0.01 millimeters = 0.000393700787 inches One hundredth of a mm, the standard unit on metric micrometers, is equal to 2.5 thousandths of an inch. Surely you can measure small distinctions with that. Dont you just love Google ? Cheers RicB
This PTG archive page provided courtesy of Moy Piano Service, LLC