The Rhino Heavy Duty Punch is a 14 inch open-ended paper punch that features a quick change die system for changing punch patterns in less than two minutes. Patterns available are for Comb, commonly refered to as GBC binding and Spiral binding. The punch offers quick, easy setup such as easy pin pulls and preset paper stop positions ensuring that your job is completed easily and accurately. Its ability to punch up to 60 pages at once–up to 12,000 per hour–gives assurance that your project is done quickly as well. You need look no further for the best in book binding equipment.