[s-cars] Flaring Fuel Line Problems

[Sean Douglas]

The fuel line saga continues...

I picked up a metric ISO flaring tool and have been practicing on some
spare tubing, but I'm finding it very difficult to get a good flare. 

I read all the tips on tube flaring from various sources;

- cut square with hacksaw as I've heard that a wheel cutter hardens the
tube
- debur inside and outside of tube

The main problem is that when cranking down the screw, the tube is
pushed out by the force. I've tightened the wing nuts with a wrench as
tight as they will go, but it does not seem to have enough clamping
force to prevent the tube from slipping.

The flaring tool is not best quality, but seems to be the basic standard
out there. Its identical to the one pictured here
http://www.awrtools.com/CategoryDisplay.asp?Category=80&PriceType=1
(about a third of the way down).

Would a better quality tool be the best advice here? Any sources for a
decent tool? Or am I stuck buying new lines from the dealer for $400?

Thanks,

Sean Douglas