'Worker' in the Bible

he is son of a woman, a widow, of the tribe of Naphtali, and his father a man of Tyre, a worker in brass, and he is filled with the wisdom and the understanding, and the knowledge to do all work in brass -- and he cometh unto king Solomon, and doth all his work.

for a certain one, Demetrius by name, a worker in silver, making silver sanctuaries of Artemis, was bringing to the artificers gain not a little,