1.Shaft diameter below 6mm and maximum pore size tolerance up to 0.003mm, 2.Shaft diameter larger than 6mm and pore size tolerance
is 0.005mm, 3.Linearity below 100mm distance etc, tolerance is up to 0.005mm 4.100mm or more distance linear tolerance is up to
0.01mm 5.A form tolerance is up to 0.003 - 0.005mm 6.Position tolerance is up to 0.01mm.