Old thread but anyway it depends on the diameter of the tubing but I have a Mastercool brake and fuel pipe flaring tool which can do those. In general, whenever my A/C breaks down, I always turn to special services because I don't have much time to solve everything on my own because I'm busy with the service.
If someone needs it, I can recommend
quality repair of air conditioners because I know how important it is to go to a good specialist who will surely do everything qualitatively and there will be no problems in a while. I hope you find it useful..