hewer

kivenhakkaaja, puunhakkaaja One who hews.
1904, Kellogg Durland, Among the Fife Miners (page 62)

By certain arrangements in the former method the miner not only gets the coal but makes all proppings and repairs, so that the face moves much more slowly than with the other method where the hewers devote all their time to getting the coal (..)

All three groups were paid less per shift than coal miners. In 1905, for instance, hewers in coal mines received an average 3.79 marks per shift; in zinc and lead, 3.10 marks; in iron, 2.36 marks.