Rhin-O-Tuff 4012 Electric Open-Ended Punch:Rhin-O-Tuff's 4012 electric open-ended punching machine is one of highest-rated products of its kind on market. It works with 12 different interchangeable dies that can be used for plastic comb binding, plastic coil binding, Velo Bind, 30-hole punch binding and loop wire binding. One of most useful and popular aspects of 4012 is its auto-reverse anti-jam feature. It detects an overload in system and reverses process in order to prevent jamming. machine also features easy disengaging of your die punch pins and gives you ability to change die without using any tools or taking anything apart. 4012 boasts a "paper to pin" sight alignment to accommodate users with odd-sized applications. This alignment feature increases accuracy of hole to edge margins. It can punch between 25 and 50 sheets of paper at once depending on weight of paper and punch pattern being used. 4012 can run up to 60 cycles per minute, which can greatly increase your productivity. It uses a maximum punch length of 11" and features a very large capacity waste compartment. This machine also allows you a few different modes of operation - foot pedal, versa switch or palm switch. You can further increase versatility of this product by using it with one of Rhin-O-Tuff's HD (heavy-duty) modules. Another reason 4012 is so popular is because of its smooth and relatively quiet process. At 48 lbs, Rhin-O-Tuff 4012 is a sturdy and durable machine that will last you a long time.