In order to hide the spine, place the back cover on the front then once bound rotate that back cover to the reverse.
Paper Punches - high performance, heavy duty desktop electric punching machine are designed for busier offices or professional print shop where the quick punching paper is required. Most units are supplied with foot pedals and vertical paper feed. Depending on the model chosen the machines have interchangeable punching tools where the punching pins which can be deselected. Modules can sometimes be attached for punching for wire comb, plastic comb and coil binding.