A professional who tends machine that grinds sides of ceramic wall or floor tile to specified size and squares tile preparatory to shipment. Responsibilities include:

• Turns crank to adjust spacing between opposed grinding wheels, according to specifications.
• Starts machine and places ceramic tile into feed device of machine or moves lever to grip and feed tile between grinding wheels.
• Periodically measures tile to determine conformance to specifications, using rule.
• Places tile onto bench for packaging.