The CombBind C450's electric punch mechanism can handle up to 25 sheets per punch (22 per punch more conservatively). This unique system can also punch through up to 2 plastic covers simultaneously, saving time and money on productivity. The C450 also has a state-of-the-art auto-centering system, making it simple to align documents during the binding process. All of these features help make the C450 an easy and versatile option.

Additionally, the newly-designed document separator gives you the ability to divide sheets into sections that are very simple to punch, which is a superb feature for someone who want to use the CombBind C450 for occasional projects. If you create higher volume projects, more often, this may not be quite as helpful to you, and you may want to consider a binding system made especially for high-volume applications.

The C450 does an excellent job binding projects with plastic combs that are between ¼" and 2" in diameter, giving it some versatility in document size. The CombBind C450 has an efficient, attractive compact design, causing it to look as good as it works. Although not critical, style is a feature often ignored by other binding system makers.

The CombBind C450 is effective in a variety of situations and applications but is not completely without limitations. For instance, without a depth-of-punch control, the machine doesn't allow you to decide how far you want the holes from the edge of the paper of your document. This can make set-ups quite complicated. Additionally, the C450 does not have disengageable dies, which can aid in binding custom-sized projects - and without open throat design, no pieces over 11 inches in length can be punched. A4 documents and legal sized sheets are no exception, which can make the C450 impractical depending on your needs.

One consideration that many people overlook is that the C450e's rotary comb opener is not as easy to use a standard comb openers, though it can be mastered with a little practice. All of the pros and cons of the CombBind C450 should be carefully compared to other binding systems in its class before you make your final decision.

As previously mentioned, the C450 is mostly made of plastic, making it stylish, but less durable than all-metal component, potentially causing an issue for higher volume applications in which the machine is used again and again. Additionally, new features, like the document separator and auto centering device may be a plus, but they are as of yet unproven for durability under continued use and this must be considered as your binding equipment decision is made.

Even with a few limitations, however, the stylish and convenient CombBind C450 plastic comb binder is a great choice for medium usage applications that are large enough to benefit from the convenience of an electric punch mechanism. The C450 increases productivity and makes the binding process a great deal easier. So if you want a great-functioning binding system at an equally great value, the GBC CombBind C450 is a good bet for a variety of situations.