A professional who tends machines to assist spar-machine operator in making boat masts and transmission line crossarms. Responsibilities include:

• Raises one end of pole while spar-machine operator raises other, using electric hoist.
• Secures pole between tailstock and headstock of lathe by turning crank.
• Inspects pole, and marks top with tacks.
• Measures pole and saws pole to specified length.
• Locates and bores boltholes, using car-mounted drill press.
• Marks identifying data on end of spar, using crayon.
• Rolls poles to and from work area, using peavey.
• Performs other duties as described under helper master title.