Wire-O Pewter 3:1 Pitch Double Loop Ring Wire Spool

These Wire-O Pewter 3:1 Pitch Double Loop Ring Wire Spools offer an attractive and professional metal finish in many sizes for books. It can bind up to 120 sheets of 20lb paper or 7/16" thick books. These wire binding spools are ideal for your automatic twin loop wire binding machine. As you might know, using less expensive spool wire can cause all sorts of problems with your automated machine. Choosing this Wire-O wire spool, manufactured by James Burn, will help reduce problems with stretching that can occur with cheaper import wires. These 3:1 twin loop wire binding spools come in a wide selection of sizes and colors. It is also available in 2:1 pitch. If you need help selecting the correct diameter for your project, take a look at the sheet capacity chart below for some recommendations based on the thickness of your books. These Wire-O Pewter 3:1 Pitch Double Loop Ring Wire Spools are considered to be the equivalent of if not better than GBC and Renz's Twin Loop Wire Binding Spools.