[xd]

"It isn't complicated enough to need a specialist."

Have you ever tried to center a hole to micron precision? Do you know which drill speed vs feed rate to use for the metal you are drilling? Do you know which drill bit to use? Do you know how to sharpen drill bits correctly? Do you know how to secure work to the table? Do you know how to use a sine bar and gauge blocks to mount your work piece at a precise angle? Do you know how to inspect the surface of the work piece to make sure it doesn't have burrs, specs of dirt etc that could throw the work tolerances out? etc etc

It's not he most in depth job, but it's far from unspecialised.