Good double flaring tool for stainless steel?

[V6UnderPressure]

Planning to run stainless hard lines for my fuel in the GN. Anyone had experience with certain tools? I know some arent meant for stainless and are more suited towards softer metals (copper, aluminum etc.). Would like to get your input.

 

[Chuck Leeper]

If done w/ a good quality tool, there's no need for double flaring.
If these lines are to be used w/ AN fittings, there's a need for a 37* tool.

 

[V6UnderPressure]

If done w/ a good quality tool, there's no need for double flaring.
If these lines are to be used w/ AN fittings, there's a need for a 37* tool.

I'd like to do -AN fittings.

 

[Chuck Leeper]

Here ya go..

I'd like to do -AN fittings.

37* flaring tool - Google Search
LOTS of choices. I'd NOT go for the cheapie stuff. Won't last, inaccurate flares. Some won't grip the tube tite enuf.
A couple items:
1. Cut the tubing w/ a cutoff wheel. A tubing cutter will distort the tube, and work harden it.
2. Use a countersink to bevel the inside of the tube. Just a little is good.[I put mine in a cordless Makita.] I also use a fine file on the od to get rid of any burrs.
3. BE SURE the ends are cut square.
4. Put the sleeve and "B nut" on BEFORE you do the flare, or bend a 90!!
Another item I do is to use an old fitting, preferably steel, and I run the tube up tite on it, to help w/ forming the flare seat.

 

[V6UnderPressure]

Man that sounds like a task!

 

[gnxtc2]

First of all do NOT double flare stainless.

It's single flare whether you are doing 37*(AN) or 45*(common auto brake fittings) using stainless tubing.

You double flare the Bundy tubing (common steel brake tubing).

I use the 71475 Mastercool Hydraulic flaring tool and bought the 37* adapters. http://www.mastercool.com/pages/flaring_tools.html

If you are going to use the 37* AN stuff, you need to use the ferrels and tube nuts. Don't order the Earl's, Aeromotive, Russell, etc, etc stuff. Go down to your local hydraulic shop and buy the ferrels and nuts.
Example: Earls wanted $3.00 for a pair of -3AN(3/16) ferrels. I picked up the ferrels from the hydraulic shop for $0.32 ea.

Billy T.
gnxtc2@aol.com

 

[V6UnderPressure]

First of all do NOT double flare stainless.

It's single flare whether you are doing 37*(AN) or 45*(common auto brake fittings) using stainless tubing.

You double flare the Bundy tubing (common steel brake tubing).

I use the 71475 Mastercool Hydraulic flaring tool and bought the 37* adapters. http://www.mastercool.com/pages/flaring_tools.html

If you are going to use the 37* AN stuff, you need to use the ferrels and tube nuts. Don't order the Earl's, Aeromotive, Russell, etc, etc stuff. Go down to your local hydraulic shop and buy the ferrels and nuts.
Example: Earls wanted $3.00 for a pair of -3AN(3/16) ferrels. I picked up the ferrels from the hydraulic shop for $0.32 ea.

Billy T.
gnxtc2@aol.com

Cool! Thanks for the info Billy! Any idea where to pick up stainless line? I'm thinking I wanna go 3/8" line which I think is -8an? Not sure.

 

[gnxtc2]

Cool! Thanks for the info Billy! Any idea where to pick up stainless line? I'm thinking I wanna go 3/8" line which I think is -8an? Not sure.

Inline Tubing has the good annealed stainless stuff. Inline Tube - Preformed Stainless & OEM Brake Line Sets

3/8 = -6AN

1/2 = -8AN

When you are sizing AN to fractional sizing, the number is divied by 16. Example -6AN/16 = 3/8"; -10AN/16= 5/8".

Billy T.
gnxtc2@aol.com

 

[Chuck Leeper]

Billy, thanks for the info on the BE Cool dies. I have that tool, and when I called them about 37* dies, they told me "nope", may do it at some point. I guess that "point" has come!
Might you have a place to get them, that sells at a reasonable price??
Thanks!

 

[gnxtc2]

Billy, thanks for the info on the BE Cool dies. I have that tool, and when I called them about 37* dies, they told me "nope", may do it at some point. I guess that "point" has come!
Might you have a place to get them, that sells at a reasonable price??
Thanks!

Since you already have the main tool, the 37* adapter kit is part # 71098. I just bought a few weeks ago. I don't know what they telling but they were clueless about their own stuff.

I buy most of my tools from TheToolWarehouse.net - Discount Automotive Equipment - Order Discount Automotive Specialty Tools I bought the 37* kit from them also.

Billy T
gnxtc2@aol.com

 

[Chuck Leeper]

Thanks!
I just ordered the 37* kit. Good price, considering I paid waaay too much just for a 3/16" replacement, that we were going to remachine.