One barber shaves not so close but another finds work.

No one completes a job so perfectly that another person could find nothing to improve. Even careful work may leave small flaws or unfinished details.

The proverb also suggests that one person's skill does not eliminate opportunities for others. A later worker may still have something worthwhile to contribute.

Use it to temper a claim that a piece of work is beyond improvement, or to reassure someone taking over a task that there may still be room for their skill. It suits situations involving revision, finishing touches, or successive workers.