lathe operator; turner
A worker who operates a lathe; a specific skilled trade in manufacturing.
彼は町工場で旋盤工として働いている。
He works as a lathe operator at a small factory.
旋盤 is the lathe machine itself, while 旋盤工 is the person who operates it.
Compound of 旋盤 (lathe) + 工 (worker, craftsman).