Why aren't my strings fitting?

I have the grover locking tuners that came with this guitar, and I can't figure out why in the world a .056 gauge string will not fit through through them. I was initially trying with a .060 gauge string and figured maybe it was too big so I downsized a little, and yet it still is just not going through the tuner. What is my solution to this as everything I have found in my own research suggests that there should be no issue.