This product sure makes it easy to straighten out coils of brake line. I used it on galvanized line and it worked great, so much better than trying to straighten by hand. You just feed the line through and run it back and forth a few times to get it completely straight and off you go to make your necessary lengths and bends for your application. It works awesome. Can’t imagine why I didn’t get this earlier! Makes brake line straightening much more enjoyable.