I usually just come here to read and look at hot rod projects but occasionally I try to make a contribution.
When I was young I worked for a service station supply and maintenance company. We made air hoses right off a roll we carried on the truck. We used a simple tool that you smack with a BFH. It can be used in a vice also.
It was one like this;
https://www.amazon.com/Western-Enter.../dp/B002FCJF8O