15 There you have it, one freshly constructed hard line that was $19.89 minus the tools, and $197.00 including the tools. Just like the fuel log, the tools we used are premium pieces, but there are flaring tools available for less than our $115.62 unit. We like the look of well-bent hard line and it will last for a very long time. Pros: good looks, very durable, low-cost parts. Cons: expensive tool costs, harder to create, less forgiving.