Spiral-O wire is a unique kind of twin-loop binding wire that has the same hole spacing as a plastic binding comb. This essentially means that you can wire bind using the comb punch that you already have, without needing to buy a whole new wire punch machine.

So how does Spiral-O actually compare to the standard Wire-O twin loop wires? Spiral-O has just 19 double loops across the entire length for a standard letter size page. Wire-O, however, has either 32 or 21 loops, depending on the binding pitch. The 19 rings on a Spiral-O binding spine correspond to the 19 rectangular holes that are punched for a plastic comb binding spine, whereas Wire-O requires an actual Wire-O punch machine in the correct pitch for the individual wires.

Spiral-O is growing in popularity. Most businesses that have been binding for a longer period of time have a GBC comb binding machine, so Spiral-O gives those users the ability to create a more professional look with a wire, without having to invest in a whole new piece of equipment. All they need to do is add a wire closing tool, and they are ready to go.

Here is a visual to help you see how Spiral-O wire compares to its counterparts, Wire-O and Comb.

Spiral-O Wire vs Plastic Comb vs Wire-O


Mallory Morsa, Binding101 Product Expert About the Author • Mallory Morsa has been a part of Binding101 since 2008 and has experience in several departments within the company. She began in customer service and sales where she honed in her skills to provide the customer with professional, fast, and accurate information. Shortly after, she was promoted to sales supervisor and also took on the role of product expert, training the team on new products. Throughout this time, she also wrote content for the site, as well as contributed stock photography and videography. As the team grew, she moves to an official position as the content specialist and social media manager. Her skills in these variety of areas give her the unique expertise to not just create content for the web, but to create content for you, the customer. She has a Bachelor's degree in business management and marketing, was on the Dean's List each year, and graduated Summa Cum Laude. In her free time, Mallory's favorite things to do include volunteering at the animal shelter by bottle feeding neonatal kittens, reading at the park, cooking plant-based meals, playing board games, and binge streaming TV shows with her 3 furbabies and family beside her.