9 Best Brake Line Flaring Tool to Buy in 2022 (Recommended)

Best Brake Line Flaring Tool

Most automotive lovers will tell you that nothing feels better than speeding down an empty highway. But in our opinion, you know what feels even better? Being safe! The last thing anyone wants is an accident caused by unsafe speeding.

One of the most important aspects of driving safely is to have functioning, well-maintained brakes. And a crucial part of your car’s brakes is the brake line. One of the best ways to guard against brake line leaks is to flare the brake line.

So today, we’re going to help you find the best brake line flaring tool for the job. Plus, we've included a buying guide to better aid you in your purchase.

Let's get started!

9 Best Brake Line Flaring Tool Reviews 2022

Without any further ado, we now present our top picks of the best flaring tools for your car's brake line. We've spent considerable time researching these tools, so don't worry””you're in good hands!

1. Tool Guy Republic Professional Brake Line Flaring Tool

Highlighted Features

  • Included T-handle screw clamp is able to securely hold the tube and die
  • Very easy to operate, making it suitable for beginners and novices
  • Allows you to create single, double and bubble flares
  • Purchase includes a sample flare for a test run
  • Comes with dies for both 45 and 37-degree flares

Our first pick is from Tool Guy Republic (TGR), and it's a kit that, quite frankly, lives up well to its high rating. In fact, many who have used it consider it to be the best bubble flare tool they've ever used. Let's find out why.

This set offers you the chance to work with the three main kinds of flares: single, double, and bubble. Furthermore, you'll receive dies for tubing measuring 3/16”, 1/4”, 5/16”, and 3/8”””basically, you can depend on this set to fit your brake lines.

We also like how easy to use this set is. Whatever kind of flare you need to create””or if you need to create a flare for a fuel line or cooler line””you can do it quickly and efficiently with the help of this set. From harder metals like stainless steel to other softer metals, this tool can handle it all””just remember to keep it clean and well-maintained!

2. GEARWRENCH Tubing Service Set – 41590D

Highlighted Features

  • Comes with all necessary tools for flaring
  • Includes tools for deburring, reaming and cutting
  • One of the most affordable sets out there
  • Purchase includes a 7-piece adapter kit

Next up, we have a tubing set from GearWrench, a brand that has been credited with founding the five-degree ratcheting wrench that became such a staple in every professional and non-professional's toolkit. Well, their tubing service set isn't far behind in terms of usefulness and popularity.

With this tubing set, you’ll be able to perform a number of tubing applications””not just flaring. From making the first cut to reaming and deburring, everything is possible with this set. With this set, you’ll receive a mini tubing cutter, a tubing bender, a deburring tool, a holding bar, a 7-piece adapter kit, and a yoke for flaring.

The best part about this set, however, is how affordable it is! Given all the different items you'll be receiving with this kit, it's quite a wonder that they managed to make it so wallet-friendly. And let's face it; car parts and maintenance tools aren't cheap, so this is a blessing!

Overall, we think this set is definitely worth your attention, given its high ratings, despite its low price.

3. ARES 18025-3/16-Inch Double Flaring Tool

Highlighted Features

  • Allows you to make flares on 3/16-inch tubing made from nickel, steel, and copper
  • Features a versatile and ergonomic design for ease of use
  • One of the most affordable brake line flaring tool kits available
  • Compact design allows you to easily use on-vehicle

Our next pick is from Ares, and it’s undoubtedly one of the highest-rated brake line flaring tool kits on our list. Packed with an Op1 punch and an Op2 punch besides the flaring tool, this kit allows you to make flares with ease. Whether you're looking for a flaring tool for copper, nickel, or steel, this is your man.

You can tell from the get-go that this is a thoughtfully designed kit. The tool itself features an ergonomic design, which has the added benefit of saving you time on the job. Plus, its compact design allows the kit to be stored easily in your car. We're not saying this is the absolute best double flare tool, but you could be forgiven for thinking so.

Making both single and double flares with this thing is almost criminally easy. However, it’s worth noting that you won’t be able to make bubble flares with this kit. All the same, when you consider the almost unbelievably low price of the product, it becomes very clear why it’s such a sought-after kit.

4. K Tool International KTI70082 Single and Bubble flares

Highlighted Features

  • The efficient clamping system allows for a quicker flaring process
  • Integrated flushing tool allows for proper depth configurations
  • Precision-designed dies guard against pipe deformation
  • The included instruction manual makes it easy to learn the process

This smart and straightforward tool kit from K Tool International offers effortless functionality. Whether you’re seeking to make 45-degree single, double, or bubble flares, this kit will get you there””and it’s compatible with stainless steel, soft metal, and OE steel.

The T-handle screw clamp included with this tool kit is particularly worthy of mention. When making flares, it's extremely important to keep the line held securely in place, and the T-handle screw clamp is instrumental to this process if mistakes are to be avoided.

First-time users of a brake line flaring tool might be somewhat confused by the complicated process. Keeping this in mind, KTI has included a handy instruction manual, which is very easy to follow.

Now, while it's true that this isn't the most affordable flaring kit tool out there, the functionality it offers definitely makes it a worthy investment. Plus, if you're all set with a good flaring kit tool, that's one less thing to worry about!

5. OTC 6504 Deluxe ISO Bubble Flaring Tool Set with Cutter

Highlighted Features

  • Comes with adapters for 10mm, 4.75mm, 8mm, and 6mm tubing
  • Included 6514 tubing cutter makes the process efficient and smooth
  • Perfect for making bubble flares and ISO flares
  • The screw holds adapter securely in place

We have come across quite a few flaring tool sets on our hunt for the best bubble flare tool. We're not saying this one is the perfect match for that criterion, but it certainly comes close. Designed to be used with metric steel brake lines, this tool set from OTC is undoubtedly one of the most reliable sets out there.

So what comes with your purchase? Included with this set are a 6514 tubing cutter and adapters for 4.75mm, 6mm, 8mm, and 10mm tubing. With this tool, making high-quality, functional flares is super easy. And to make portability and storage easier, it all comes packed in a stylish and convenient plastic blow-molded case.

However, undoubtedly what makes this such a popular bubble flaring kit for so many users is the price. By now, you’ve probably realized that flaring tool sets aren’t cheap; having said that, the price of this set definitely goes a long way for anyone looking to make long-lasting flares on a budget.

6. ABN Bubble Flare Tool & Double Flaring Kit

Highlighted Features

  • Allows you to make double and bubble flares with ease
  • Chrome-plated alloy steel construction of swivel lowers friction
  • Tools come in a convenient and compact carrying case
  • Efficient tubing cutter suitable for 3mm to 16mm tubing

This durable and high-functioning flaring tool kit set from ABN is undoubtedly one of our favorites. With the ability to help repair water lines, fuel pipes, refrigeration lines, and, most importantly, brake lines, this product offers great value since you won’t be limited to automotive repairs.

So what's in the box? Your purchase would enable you to receive a tube cutter, a yoke assembly reamer, a cone for perfect alignment, and adapters. This set is compatible with a large number of tubing measurements, namely 3/16″, 1/4″, 5/16″, 3/8″, 1/2”, 4mm, 4.75mm, 6mm, 8mm, and 10mm. Effortlessly make flares in aluminum, steel, and copper tubing.

What we like about this set is that it makes the process of flaring a very easy one. The chrome-plated alloy steel construction of the swivel allows for less friction, making the process straightforward and hassle-free. Plus, the yoke is constructed from heat-treated steel, which guards against corrosion. Overall, if the best double flare tool is what you've been searching for, you may have already found it.

7. Wostore Auto Double Flaring Tool Kit

Highlighted Features

  • Allows you to swiftly and efficiently make a number of 45-degree flares
  • Single, double, bubble and ISO flares can all be made with the tools in this kit
  • The included flaring bar allows for greater ease of use by the less experienced
  • Suitable for use with soft steel, brass, aluminum and copper tubing

When looking for the best double flare tool, we took a few important factors into consideration: what materials it can be worked on with, the range of possible applications, and the overall functionality of the kit. This kit from Wostore fits all of those criteria and more.

Whatever vehicle you own that needs fixing, the chances are that this kit will accommodate your needs. This kit allows you to make both double and single flares on the tubing of many different materials, including copper, aluminum, and brass, besides other soft tubing.

This kit is outfitted with all the tools you could possibly need. With a flaring cone, five adapters, and a flaring yoke, this kit will make sure you're prepared to meet the demands of the situation. You can make flares on 4.8, 6.4, 7.9, 9.5, and 12.7 mm, and you can make them at an unbeatable price.

All of your tools will come securely housed and conveniently laid out inside a blow-molded protective case, which comes with a handle on top for portability. So whether you're a private car-owner or an automotive mechanic, you'll be able to carry your tools with ease.

8. TITAN 51535 3/16″ 3/16-Inch Double Flaring Tool

Highlighted Features

  • The flaring tool comes with a removable handle for your convenience
  • Included instructions manual makes it easy to use for first-time users
  • The compact design makes for easy storage and on-vehicle usage
  • Suitable for use with the vast majority of vehicles
  • One of the most affordable brake line flaring tool sets out there

Our next pick is a highly functional flaring tool kit set with an easy-to-use design that will allow you to make 45-degree flares with great ease and in a short amount of time. And the best part? It's one of the most affordable kits on our list, without compromising on the quality.

When you're ready to start making flares with this kit, you'll have all the necessary tools to do so: starting from the 3/16 inch flaring tool to the Op1 and Op2 punches, you'll be well-equipped to handle the situation. You're also bound to appreciate the included lubricant and positioning bolt.

The clamps, as we know, are an integral part of any flaring tool kit set. Thankfully, this kit delivers very well on that front. Not only will they securely hold the line in place, but they work without leaving crimping or marks. So no matter your vehicle model, you can easily get the job done.

9. Mophorn Hydraulic Flaring Tool with Tube Cutter Kit

Highlighted Features

  • All pieces in the set are polished for durability
  • Ideal for use with metal pipes measuring 5 to 22mm
  • Includes a number of dies for all possible required uses
  • Comes in a durable and sturdy PVC case

The final product we have selected for your consideration is a high-performing and durable hydraulic flaring tool kit that allows you to make not only flares but fuel connections as well. The included fuel line flare and transmission dies are well-crafted and suitable for use in a number of situations.

This brake line flaring tool kit is ideal for making flares in 5mm to 2mm metal pipes of all kinds and is made to suit the specifications of the vast majority of vehicles. It includes dies of 22mm, 27.5mm, 34mm, 43mm, 49mm, and 61.5mm.

Finally, this 17-piece set comes nicely stored inside a durable and convenient skid-free PVC case equipped with a convenient carrying handle. All in all, no matter the task you're trying to accomplish with your car, this tool kit will get you there. For the price, though, we do wish that they'd included an instructions manual; nevertheless, it's the age of the internet, use it!

Things to Consider Before Buying Brake Line Flaring Tool

Before you set about choosing the right brake line flaring tool for your car, there are some factors you need to keep in mind. Here they are.


It’s no secret that brake line flaring tool kits are somewhat expensive. So it’s your job to ensure that the materials used in making the tools are durable.

The best material, in our opinion, is a copper-nickel alloy, as they are sturdy and ensure longevity.

Portability & Storage

Automotive tools should all be made such that they can be easily stored in your car and moved when required. Especially if you’re a professional, this can obviously be a huge help.

Car’s Brake System

Before you buy a brake line flaring kit, you have to first ensure that the tools in the kit will match with the measurements of your brake lines and pipes.

This has less to do with the flaring tool you will buy and more with the overall process. You need to be well-acquainted with the fittings of your car’s brake system so you can purchase the right tool.


The three parts of a flaring tool are a crew, a metal piece, and a metal bar. Together, these components ensure your tool kit’s efficiency. Your brake line flaring tool should be able to make tight fittings with ease.


Flaring tools can be pretty expensive. However, single flaring tools do tend to be cheaper, so if you’re not going to be making heavy-duty applications, you should be fine.

At the same time, single-flaring isn’t exactly recommended. Furthermore, when it comes to automotive tools, you usually get what you pay for. Don’t buy poor-quality tools for your car!

FAQs for Brake Line Flaring Tool

1. Why do I need to flare my car’s brake lines?

You don't absolutely need to, but it does make a difference. The end of the brake line’s tubing is made wider if you flare it. This allows for an easier connection, thereby lowering the possibility of a leak.

2. Do I have to double-flare my brake lines?

It’s not necessary, but it’s certainly recommended. This is because single-flaring makes it more likely that the brake lines will crack.

3. Is it possible to drive a car with a leaking brake line?

Yes, it’s possible, but that doesn't mean you should do it. Not only is it very dangerous, but it can permanently damage your brakes. So only do it if or when you have no other choice.

4. What is the best material to make brake lines out of?

Copper-nickel alloy is the most popular option thanks to its durability and sturdiness. A similarly durable material is stainless steel.

5. What size should my brake line be?

The most common size for brake lines is 3/16”/4.75mm and 1/4”.


We've done our best to give you a comprehensive look at the Best Brake Line Flaring Tool currently on the market. You can depend upon our recommendations, but if you're still in doubt, we hope the buying guide helps you.

Good luck, and stay safe!

About Jeremy

Hello! My name is Jeremy Bloomberg. I have been passionate about carpentry and DIY. Over the years, my passion slowly turned into expertise and wider knowledge about electronics. I’ve been involved in numerous projects, both professional and personal. I want to share all I have learned with you. Welcome!

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