1. plural of fettler; workers who trim, clean, or finish metal castings or other manufactured items by removing excess material
Usage: chiefly British; industrial/manufacturing context
2. plural of fettler; railway workers responsible for maintaining and repairing track
Usage: chiefly British; historical/railway context

Examples

• The fettlers worked in the foundry, removing burrs from the cast iron parts.
• Railway fettlers inspected the tracks daily to ensure safe passage for trains.
• Skilled fettlers could finish a casting in just a few hours.
• The factory employed dozens of fettlers to prepare products for shipment.
• Fettlers used specialized tools to smooth rough edges on metal components.