Considering its current definition (see below) and the wish to be politically correct, I wonder whether the word has come to acquire any racist overtone.
What is a coal miner hewer-Ask.com. Coal miner hewer is a person who hews or cuts the coal from its natural situation. The hewer is the actual coal-digger removing it from the coal face.
A stem caster is an assembly containing a wheel or set of wheels mounted onto a fork, with a stem for attaching it to the bottom of an object. They are usually found in sets of four and are used to provide mobility to an otherwise stationary item. A stem caster can be either rigid or swivel.