The PC200 Coil Binding Machine will help you prepare professional presentations in a matter of seconds from your home or small office. All NSC Coil Binding Machines have a 4:1 pitch with four-perfect holes per inch along the binding side. In addition, to the PC200 Coil Binding Machine, this binding machine comes with coil crimpers. Coil crimpers allow you to cut the excess of the coils off and tuck the ends into the coil. The coil crimpers, included in your purchase, help maintain the look the binding machine achieved without any extra cost to you.