Pulling #6 wire 160 feet?

Are you wanting the wire outside or in the house and from where to where. More information is really needed to give you suggestions. Underground, in walls?

Robert can you give us some more info please?

#6 is big wire. Shielded?

160’ is a long “pull”, have you considered impedance or voltage drop? Yes, where are you pulling this large conductor?

Surely you must have an electrician friend?

OK ; The wire goes from the main panel 200 amp house panel

too a Out Building with 100-amp it's in a 1" tube under ground. I have remove the wire from each panel. They said that I can install #6 wire - 6wires in a-1" tube and I only need four wire installed they said. I only using it for 110 amp for lights, etc, and 220 amp for a welder and lathe. it's not live in it is just a workshop.