Brake line flaring tool that actually double flares steel line?

A friend is in the process of repairing sections of brake line. His flaring tool works great with the copper tubing but is useless when trying to flare the OEM steel sections. So i'm looking for recommendations on a tool that will double flare steel lines. Thanks!
Almost all tradtional flaring tools are single flare unless you also have and use the little double flare adapters. If what he has is a quality tool, you can buy the double flare adapters separately from name brand people like Imperial-Eastman and I don't know, anymore, who all else

Make certain that you get 45 degree and not 37 degree, which are JIC/ AN