Coil binding machines punch holes in paper where coils are then spun through. Once a coil is spun through the holes, you are left with the problem of the coils spinning back out of the holes. If the coil spins out of the holes, the sheets of paper are left free to fall apart.

The best solution to prevent coils from spinning out of the paper is by using coil crimping pliers. These pliers cut off excess coil and crimp the ends, preventing coil from spinning back out. The coil crimping pliers are easy-to-use and are a must-have for any coil binding machine.