A professional who feeds cylindrical stock into one or more threading machines. Respnsibilities include:

• Shovels, dumps, or inserts material in hopper or feedrack of machine that automatically threads stock.
• Carries or wheels filled and empty containers, such as buckets and wheelbarrows, to and from machine.
• Notifies threading-machine setter of machine malfunctions.
• May fill tanks of lubricating oil, clean machine and work area.