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Grooving-Machine Operator

Tend machines that cut internal threads.

What does a Grooving-Machine Operator do?

Tends machine that cuts internal threads in pen or mechanical pencil barrels: Positions and aligns pen or pencil barrel in holding device of machine. Inserts threading tap into spindle of machine and turns lever to secure tap. Presses switch to start machine. Moves lever or depresses pedal that advances pen or pencil barrel onto rotating tap that cuts internal threads in barrel.