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4LifetimeLines Universal Hydraulic Tube Flaring Set
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
4LifetimeLines Universal Hydraulic Tube Flaring Set
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3
Tool Flaring Tool - 4LifetimeLines LTFL-3

Professional Hydraulic Brake Line Flaring Kit | 5-Die Set

$249.99
4.5
Rated 4.5 out of 5 stars
35 Reviews

SKU: LTFL-3

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The 4LifetimeLines® Professional Hydraulic Brake Line Flaring Kit delivers flawless SAE 45° inverted double flares and ISO bubble flares on steel, copper, aluminum, and copper-nickel tubing. With up to 10 tons of hydraulic force, every flare is consistent, leak-free, and professional — no guesswork required.

Key Features

  • Hydraulic-powered: up to 10 tons of clamping force for consistent, repeatable results
  • Creates SAE 45° inverted double flares and ISO bubble flares
  • Five die sizes cover all standard brake and fuel line tubing
  • Includes tube cutter, reamer, and T-handle for a complete workflow
  • Heavy-duty carry case keeps all components organized and portable
  • Backed by a 4LifetimeLines lifetime warranty

Specifications

  • Tubing Sizes: 3/16", 1/4", 5/16", 3/8", 1/2"
  • Compatible Materials: Steel, copper, aluminum, copper-nickel (CuNi)
  • Flare Types: SAE 45° double flare, ISO bubble flare

Whether you're a professional mechanic or a serious DIYer, this hydraulic flaring kit is the last one you'll ever need. Shop 4LifetimeLines for premium brake line tools built to last a lifetime.

Compare the range

Which flaring tool is right for you?

Every 4LifetimeLines flaring tool makes clean, leak-free flares. The right pick comes down to how often you flare, the tube sizes you run, and whether you want cutting and bending built in. Here's how they stack up.

You're viewingHydraulic Flaring KitHydraulic Flaring Kit Hydraulic — up to 10 tons  Master Flaring SetMaster Flaring Set Bar & yoke set + bender  Economy Flare KitEconomy Flare Kit Clamp-bar flare kit  Professional Flare KitProfessional Flare Kit Flaring bar + precision dies  Turret Flaring ToolTurret Flaring Tool Quick-change turret (handheld)
Flare typesSAE 45° double & ISO bubbleSingle, SAE 45° double & ISO bubbleSingle, SAE double & ISO bubbleSAE 45° double & ISO bubbleSAE 45° inverted, double & ISO bubble
Tubing sizes3/16"–1/2" · 5 dies3/16"–5/8" · 7 dies3/16"–1/2" · 5 sizes3/16"–1/2" · 5 dies3/16"–1/2" · 5 sizes
Works onSteel, copper, aluminum, CuNiAluminum, copper, copper-nickelSteel, copper, copper-nickelSteel, copper, aluminum, CuNiBrake & fuel line tubing
WorkflowFlare + cut & reamCut · ream · bend · flareFlaring onlyFlare + cut & reamFlaring only
Best forToughest tubing — effortless, repeatable flaresAll-in-one kit — DIY to pro, even copper plumbingBudget DIY & occasional flaresRegular pro use — precise, leak-free jointsHigh-volume shops & fast on-vehicle work
Price$249.99$39.99$42.29$47.69$172.99
You're viewingView Master Flaring SetView Economy Flare KitView Professional Flare KitView Turret Flaring Tool

Hydraulic Flaring Kit YOU'RE VIEWING

TypeHydraulic — up to 10 tons
Flare typesSAE 45° double & ISO bubble
Tubing sizes3/16"–1/2" · 5 dies
Works onSteel, copper, aluminum, CuNi
WorkflowFlare + cut & ream
Best forToughest tubing — effortless, repeatable flares
Price$249.99
You're viewing

Master Flaring Set

TypeBar & yoke set + bender
Flare typesSingle, SAE 45° double & ISO bubble
Tubing sizes3/16"–5/8" · 7 dies
Works onAluminum, copper, copper-nickel
WorkflowCut · ream · bend · flare
Best forAll-in-one kit — DIY to pro, even copper plumbing
Price$39.99
View Master Flaring Set

Economy Flare Kit

TypeClamp-bar flare kit
Flare typesSingle, SAE double & ISO bubble
Tubing sizes3/16"–1/2" · 5 sizes
Works onSteel, copper, copper-nickel
WorkflowFlaring only
Best forBudget DIY & occasional flares
Price$42.29
View Economy Flare Kit

Professional Flare Kit

TypeFlaring bar + precision dies
Flare typesSAE 45° double & ISO bubble
Tubing sizes3/16"–1/2" · 5 dies
Works onSteel, copper, aluminum, CuNi
WorkflowFlare + cut & ream
Best forRegular pro use — precise, leak-free joints
Price$47.69
View Professional Flare Kit

Turret Flaring Tool

TypeQuick-change turret (handheld)
Flare typesSAE 45° inverted, double & ISO bubble
Tubing sizes3/16"–1/2" · 5 sizes
Works onBrake & fuel line tubing
WorkflowFlaring only
Best forHigh-volume shops & fast on-vehicle work
Price$172.99
View Turret Flaring Tool

Step by step

How to use this tool

The Hydraulic set uses up to 10 tons of force and a three-die sequence for effortless, repeatable 45 degree double flares. Slide the fitting on before flaring.

1

Prep the tube

Square-cut the tube, ream the inside and chamfer the outside, then lightly lube the end with clean brake fluid.

2

Slide the fitting on

Fit the tube nut first, with the threaded end facing outward.

3

Clamp in the split die

Close the matching split-die halves around the tube with the alignment pins seated, set them in the yoke, and finger-tighten the clamping screw with the tube end just past the die face.

4

Set the depth (OP0)

Insert the flat OP0 die, close the release knob, and pump the lever until the tube sits flush with the die face, then open the knob.

5

Form the bubble (OP1)

Swap in the OP1 die, lock the clamping screw tight with the bar, close the knob, and pump until the die meets the die face.

6

Finish the flare (OP2)

Swap in the conical OP2 die and pump again to fold the finished 45 degree double flare. Open the knob, remove the tube, and inspect.

Tip: always practice on a scrap piece of tubing first, and slide the tube nut onto the line before flaring — a finished flare won't pass back through the nut.

4.5
Rated 4.5 out of 5 stars
Based on 35 reviews
Total 5 star reviews: 28 Total 4 star reviews: 3 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 2
89%would recommend this product
35 reviews
  • Rated 5 out of 5 stars
    10 months ago
    Works great

    Very fast shipping and a really great price. So far I’ve used it to double flare 3/8” steel tubing but I got it mostly to do push connect fittings. The tool works great and it’s easy to use. I have done four 3/8” steel connect ends with no problems.

    D
    Doug
    Flag of United States
    Verified Buyer
  • Rated 5 out of 5 stars
    1 year ago
    very good stuff

    this tool set is how i did the brake line job on my pickup truck and was a lifesaver

    JT
    James T.
  • Rated 5 out of 5 stars
    1 year ago
    Happy

    Great product, easy to use and didn’t cost me an arm and a leg

    OH
    Olando H.
  • Rated 4 out of 5 stars
    2 years ago
    Hydraulic tube flaring tool

    It’s a pretty good value pretty easy to use makes adequate flares, especially the bubble flares, which I do not care for I prefer the double inverted 45° flare⚠️️

    SS
    Steven S.

Lifetime Quality, Covered — for Life

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Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Lifetime Quality, Covered — for Life

Zero Risk, Maximum Confidence

Built to Endure. Guaranteed to Perform.

One-Time Purchase. Lifetime Assurance.

Free Shipping

FREE SHIPPING

Spend $50. We Cover the Rest.

Built to Endure

BUILT TO ENDURE

No Weak Points. No Compromises.

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LIFETIME WARRANTY

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This isn’t a temporary fix — it’s a long-term solution. Built-in confidence. Zero guesswork.

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100+ 5 star reviews

“.. easy to get the part you need, when you need it.”

Jackson

Great Experience

Great received day early good product this is 3rd time doing business with 4LifetimeLines

Happy Customer

Great product!! I’ve ordered these before and they are great quality! I’ll be back again.

Excellent

Excellent product shipped quickly and inexpensively. I will be ordering again.

Ideal Products

Ideal stuff for fabricating brake lines brake lines at a very good price.Kit very well covers the materials for doing the whole brake line system.

Reasonable price and fast shipping!

I'll be back again!

Great Seller!

Great seller to deal with. Fast shipping and great products.

Great products, competitive prices, and fast shipping. Communication is also top notch.

This was my first purchase and the experience has been fantastic. Great products, competitive prices, and fast shipping. Communication is also top notch.

Great products, competitive prices, and fast shipping.

This was my first purchase and the experience has been fantastic. Great products, competitive prices, and fast shipping. Communication is also top notch.