puncher

noun4

1. •
   [in compounds] A person who punches (in a specified manner).
2. •
   A device for punching something, such as tickets.

   • This sewing machine works like a ticket puncher or a pair of pliers. Squeezing the two hand grips together operates the needle and the thread and material feeds. — 1949
3. •
   (US, slang) A cowpuncher; a cowboy.
4. •
   A person who keys data into a computer system.