Thread chaser sizing info?

So... I managed to cross-thread this hardline going into the brake master cylinder on my 2012 Prius. I have been advised to back it out and use a thread chaser to re-align the treads in the assembly and use a die to re-thread the ferrule. The question is: What size/threading do I use? Any suggestions would be greatly appreciated.

Also: Please forgive me if I have posted this twice - the first time didn't show up.