You mean a carpenter’s son, as the pharisees called him?
There is no evidence that he ever was a carpenter; he was following the course of study of a child priest.
What is your evidence for this? Jesus was not from a priestly family or even a Levite. He was of the royal house of the tribe of Judah.
When he sat down with the scribes and scholars for three days in the temple at the age of 12, he amazed them by his learning and deep knowledge of the Scriptures. I think they would have been more amazed by a carpenter's (builder's) son, with only the elementary teaching given him, than a prodigy halfway through a college course.
In Mark 6:3, we get the same word [tekton= carpenter, builder] that was used to describe Jesus’ foster-father, describing Jesus himself. (”Is this not the carpenter?”).