Machine tools operations

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Across
  1. 2. a long metal bar with rows of teeth on it
  2. 5. a machine for changing the shape of a piece of wood, metal, etc. that works by turning the material while a sharp tool is pressed against it
  3. 7. metal is removed from the surface of a workpiece to make it smooth
  4. 8. used to enlarge and finish (smooth) holes already drilled
Down
  1. 1. a piece of metal or other material that is in the process of being worked on or made or has actually been cut or shaped by a hand tool or machine
  2. 3. the activity of cutting metal or making it into particular shapes using a special machine
  3. 4. a person whose job is operating a machine
  4. 6. used chiefly to cut metal into round shapes