These special spiral coil crimping pliers are designed specifically for use with an oval hole coil binding pattern like the one used with the GBC Digicoil automatic coil inserter. Like standard coil crimping
pliers these crimpers both cut and crimp the ends of your spiral coil bound documents in a single step. However, these pliers are designed to leave a longer throw at the end of the coil (the part that is bent over) this is necessary for binding documents with oval holes and is extremely useful for use with 3:1 pitch coil and with 2.5 to 1 0.400 pitch coil. The longer throw helps to ensure that your coil will not spin back off the document during use.