Tip - How a Hole Puncher Works | eHow

How a Hole Puncher Works. A hole puncher is a tool that punches clean holes in paper; the holes are large enough to allow the paper to be placed in a three-ring binder. The first step is to secure the paper. Typically the punching mechanism is shielded by a metal plate, with a hole for the puncher to fit through. The paper is placed under the first...