fettler

plural fettlers

1. A person who maintains railway lines.

   1939, Comrade Fettler (a Union song about Fettlers)http://unionsong.com/u266.html The summer brings its nursery, with dust and sandy blight But the Fettler must keep toiling, to keep the track alright.

   1 more example

   Sometimes the engine stopped for water, or to drop stores at fettlers' camps, or to accumulate the steam to take it up a heavy grade.

   1938, Xavier Herbert, chapter VI, in Capricornia, page 79

2. Someone whose job is to sand and grind small imperfections from metal and ceramic castings.
3. broadlySomeone who fiddles or tinkers with things.
4. UKslangLancashireA friend or mate.

   How's tha' doing fettler?

5. historicalbusinessAn ostler; one who looks after the horses in a mine.