A professional who tends machine that drills hole and presses trademark into hole on stem of smoking pipes. Responsibilities include:

• Inserts and secures specified size drill in machine drill chuck, using chuck wrench.
• Places plastic tape of specified color in die press element of machine and adjusts die pressure, using wrench.
• Turns knobs to adjust operation speed of moving elements of machine.
• Presses button to start machine and depresses pedal to activate rotation of machine drum with clamps.
• Inserts pipe stems in clamps as clamps rotate by work station.
• Observes operation of machine that drills holes in stem and presses trademark into drilled hole to detect defects.
• Presses button and depresses pedal to stop machine when defects are noted.
• Turns handle to align drill and adjust pressure to correct defects.