If a 4/0 copper conductor is entering a meter enclosure containing only a meter socket through the opposite wall , what is the minimum wire bending space at the terminal where the lay-in terminal is at a 45 degree angle?

If a 4/0 copper conductor is entering a meter enclosure containing only a meter socket through the opposite wall , what is the minimum wire bending space at the terminal where the lay-in terminal is at a 45 degree angle?