The dimensional tolerances for as printed parts are in the range +/-1% to +/- 3%, depending on part geometry (size, wall thickens, other features... )
For post machined parts tolerances of a few microns can be achieved. How many microns depends on the size of the part.
- +/- 25 µm in an outer diameter of 100mm.
- +/- 3 µm in an inner diameter of ~ 0.5mm (EDM)