A professional who tends battery of automatic machines that flame-cut and form vials for level from glass tubing. Responsibilities include:

• Inserts tubing in holder to feed machine.
• Replenishes tubing and replaces fill catch boxes.
• Examines formed glasses for defects, such as unclosed bottoms, elongated tops or misshapen vials, and notifies machine adjuster of machine malfunctioning.
• Removes formed glasses to workbench and files points from glasses to leave opening for filling, using half-round file.