Making steel hydraulic lines

[Al_Smith]

I've got a few of the small sized and the benders but not larger than about 1/4 - 5/16 " .Simple 45 degree flairs on soft copper is  easy but a 37 on steel lines not so easy .Double flairs, inverts on brake lines to me are the most difficult .You can find brake lines though . I've got an old Oliver dozer they used water pipe and it has never failed and it's got a Vickers high pressure gear pump .It's a DIY thing done decades ago .