A professional who tends machine that automatically punches holes and crimps grommets in mattress borders to insert ventilators and attach handles. Responsibilities include:

• Slides border into marked position under machine head and depresses pedal to punch holes in boxing (mattress border).
• Places grommets and ventilating grids over holes and depresses another pedal to crimp grommets and grids into fabric.
• Inserts handles in grommeted holes.