A professional who assists barrel assembler to assemble barrels, performing any combination of following duties. Responsibilities include:

• Starts gas burner or oven to heat shells (barrels without ends).
• Removes and replaces machine attachments, such as croze cutter and drill chucks.
• Replaces worn sanding belts on sander.
• Performs other duties as described under helper master title.
• May be designated according to machine operator assisted as croze-cutter helper; head-up-operator helper; heater operator helper; hoop-driving-machine-operator helper; leveler helper; sander helper; truss-driver helper; truss-puller helper.