The PVC Marlon 200ES Single Head Electric Spiral Coil Crimper can help speed your coil-binding operation cost effectively. This auto crimper ships with your choice of cutter head installed: A size crimps 6mm – 8mm (Oversized punch patterns or punch patterns with a large backstop will not work well with the A size cutter head), B size crimps 8mm – 25mm, C size crimps 12mm – 50mm. Simply choose the size of cutting head that you need or combine this unit with the 200EL to stack the units for crimping many different sizes of books.