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The best bubble flare tool is a must-have for vehicle owners. It provides protection from unexpected brake failures. Besides, this type of flare tool is not just great for vehicles but also it can be used for other applications. Finding the best bubble tool for flaring is, however, not a straightforward task. For this reason, we bring you the following reviews. Here, we have discussed various flaring tool kits by different companies to give you a clear picture of what you should go for.


10, OTC Stinger Double Flaring Tool Kit (4503)

OTC 4503 Stinger Double Flaring Tool Kit TOP 10 BEST BUBBLE FLARE TOOLS IN 2024 REVIEWS

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This bubble flare tool is worth spending money on because it is engineered to help you make single or double flares in aluminum, brass, and copper tubing. It also comes in handy when you want to make single or double flares on soft steel brake line tubing. The kit comes with 5 different adapters, and these are 3/16, ½, 3/8, 5/16, and ¼ inches. The chrome-plated alloy steel swivel helps minimize friction as well as ensuring a smooth and even flare. There is also a forged, heat-treated yoke that ensures superior durability and long-term performance. Furthermore, everything in this kit comes in a plastic storage case, which is rugged to keep all the components safe. The case also keeps all the tools organized so you can easily access them every time you want to use them.

  • The kit is shipped very fast
  • Works well when used according to instructions
  • The plastic case is nice
  • The price is amazingly affordable
  • Not suitable for use with poly-coated steel line or steel line


9, TGR Brake Line Flaring Tool – 45 Degree Set

TGR Professional Brake Line Flaring Tool- 45 Degree Set - Single, Bubble, and Double Flares

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Although this flaring tool comes with one less die than the OTC 4503, this should not prevent you from buying it. It is a great tool that will help you create double flares, single flares, and bubble flares quickly and in a nice manner. The dies it comes with are 4, and they are for 3/16”, 3/8”, 5/16”, and ¼” tubing. They help make the tool super versatile, which is very important, considering that versatility is invaluable when dealing with tools like these. Whether you want to make perfect flares on brake lines, fuel lines, or transmission cooler lines, this is the tool to go for. It works on stainless steel, steel, and soft metal tubing. Well, all these simply prove how versatile this bubble flare tool is. And with such a versatile item, expect quick and easy operation.

  • Makes operation consistent and smooth
  • The flare tool feels very professional
  • Great for flaring brake lines
  • It is worth the money
  • Must be mounted in a vise to work


8, MASTERCOOL Universal Hydraulic Flaring Tool Set with Tube Cutter (72475-PRC)

MASTERCOOL 72475-PRC Blue and Silver Universal Hydraulic Flaring Tool Set with Tube Cutter

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There is no way you will fail to get it right with a flare toolset that has been professional quality air conditioning service tools and equipment for more than 3 decades. We are talking about MASTERCOOL – a real company that knows what customers want. The MASTERCOOL 7245-PRC is one of its products, and it works as anticipated. It comes with a magnetic adapter holder that holds adapters in place so you can have an easy time creating perfect professional-quality flares. Besides, this set boasts an enlarged die set compression area that helps ensure better gripping of dies. Bubble flare tool can be used on “Dead Soft” and “Annealed Steel”, which is another reason why you should go for it. The set comes with a tube cutter, and this further makes it handy.

  • Makes perfect flares, and there are no leaks
  • Allows you to make flares incredibly fast
  • The hydraulic action requires zero strength to actuate
  • Makes life easier and better
  • The price is quite on the high side, but it is worth it

7, MASTERCOOL Universal Hydraulic Flaring Tool (72485-PRC)

MASTERCOOL 72485-PRC Silver/Blue Universal Hydraulic Flaring Tool (3/8"&1/2" Transmission Cooling Line Die/Adapter Sets Plus Tube Cutter)

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Like the MASTERCOOL 72475-PRC, the MASTERCOOL 72485-PRC comes with a tube cutter. This means it is a complete flaring tool that will eliminate inconsistency by providing you with professional quality flares every time. In terms of price, the MASTERCOOL 72485-PRC is slightly cheaper than the MASTERCOOL 72475-PRC. Overall, this set includes Hydra-Flare Yoke & Pump Assembly, Mini Tube Cutter, 45-degree Flaring Cone, and Adapters & Die Sets. The adapters and die sets are for GM Transmission Cooling Line, Metric Bubble Flare, GM Fuel Line, and Push Connect. This set comes with virtually everything to make sure you have the smoothest experience ever when it comes to creating flares. That’s why it is unsurprising that it is referred to as universal. So, whether you are a professional mechanic or just interested in creating quality flares on your own, this set is for you.

  • Great for those who want the ends of brake lines done correctly
  • The tool is effortless to use
  • Does a fantastic job of creating decent flares
  • The kit has everything you need to make bubble and double flares
  • May arrive with individual parts scattered all over the case; therefore, packaging should be improved

6, Titan Tools 3/16-Inch Double Flaring Tool (51535)

Titan Tools 51535 3/16-Inch Double Flaring Tool

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If you are on a budget yet want to make stunning flares every time, the Titan Tools 3/16-Inch Double Flaring Tool may be the best bet. Despite its insanely low price point, this flaring tool set comes with all the essential accessories to ensure 100-percent user satisfaction. Some of these accessories are a Container of Die Lubricant, a 3/16” Double Flaring Tool equipped with a removable handle, a Double Ended OP1/OP2 Punch, and a Positioning Bolt. The 3/16” steel and nickel-copper tubing will let you create a perfect inverted 45-Degree SAE Double Flare. It is worth noting that this set is not suitable for use on stainless steel tubing. But it can be used on a vehicle in tight under-car spaces; thanks to the compact design. The removable handle can be quickly removed if you prefer to use the double flaring tool in a bench vise.

  • The quality of the content in the set is great
  • The flaring tool leaves behind amazing results
  • The long clamping area does not need teeth to hold the line from slipping
  • Very ergonomic and works perfectly with the handle
  • Seems to need a lot of lubricants to work smoothly

5, ABN Bubble Flare & Double Flaring Kit

ABN Bubble Flare Tool & Double Flaring Kit – Tubing Bender Flare Tool & Pipe Cutter (1/8in to 5/8in / 3-16mm)

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Perfect double and bubble flares can only be made by top-notch flare tools such as this model. It creates flares for bending brake as well as fuel lines, pipes, braking pipe repairs, refrigeration, gas, water, and more. It has a fixed head and angles that enable it to make clean and precise flares. Another accessory included in this flaring kit is the Yoke type compressor that comes with a T-bar handle to help ensure a firm grip. There is also a Cone for accurate alignment. Ideally, this flaring tool is for 3/16”, ½”, ¼”, 3/8”, and 5/16” copper, aluminum, and steel tubing. The adapters are also included in this kit. That being said, we can say with a lot of confidence that you get everything when you purchase this flaring kit.

  • Comes in a nicely made box
  • The tool is well made
  • Easy to use and delivers excellent results
  • Comes with tools for both double flares and bubble flares
  • Ideal for the occasional home DIY projects
  • The directions leave a lot to be desired

4, TGR Hydraulic Brake Line Flaring Tool

TGR Hydraulic Brake Line Flaring Tool (45° Single or Double Flares, ISO/DIN Bubble Flares, Push-Connect and GM Fuel Line Flares)

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Before we begin providing you with information about this hydraulic brake line flaring tool, you must note that the flaring tool is not for in stainless steel lines. Other than that, this is a great flaring tool you should consider splashing some cash on. It comes with a plastic blow mold case that keeps the content nicely stored when the flaring tool is not in use. The case also helps keep everything organized so you can access them quickly whenever you want to create flares. With the help of a Hydraulic Cylinder, this brake line flaring tool can be used off or on the car to create stunning flares on steel or soft metal tubing. The tool is highly versatile, and, although its price is a little on the high side, we think it is worth it.

  • The included case is a bonus
  • Can be used on or off the car
  • Creates perfect flares on both steel and soft metal tubing
  • Comes with all the essentials for easy and smooth operation
  • None at the moment

3, GEARWRENCH 41870 Bubble Flaring Tool Kit

GEARWRENCH Bubble Flaring Tool Kit - 41870

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This flaring tool kit is cheaply priced; meaning if you are not keen on breaking the bank for a bubble flare tool then you should go for it. It is a handy tool kit engineered to accurately flare tubing up to 0.40 wall thickness to metric 45-degree flares. Besides, it comes with a hardened bar assembly clamp 4 tubing sizes of 10, 8, 6, and 4.7mm. The kit also comes with a reamer and yoke assembly. The slots on the yoke firmly engage with the bar assembly to make using this flaring tool kit straightforward and easy. The bubble flaring tool assortment is complete and includes corresponding adapters that form double flares. Plus, this kit comes with a storage case where you can keep everything during storage. There are also full instructions that act as a guide on how to use everything in this flaring tool kit.

  • Does not seem like it will break when subjected to rigorous use
  • Looks and feel more expensive than it actually is
  • Comes with a storage case
  • Has a complete bubble flaring tool assortment
  • May take some practice to figure out how it really works

2, OTC Master Brake Flaring Tool Kit (6502)

OTC 6502 Master Brake Flaring Tool Kit

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This kit includes a flaring bar, a debarring tool, a tube cutter, adapters, an arbor press, and, of course, a hard case. It comes with all the essentials for creating a perfect flare. Well, this is quite a surprise, given that the flaring tool kit’s price is very affordable. Ideally, this tool kit is built with versatility in mind in the sense that you can use it for the single, bubble, and double type flares. The single flare standard lines range from 3/16 inches – 5/8 inches and single flare metric lines are from 4 millimeters – 14millimeters. Double flare standard lines, on the other hand, range from 3/16 inches – ½ inches and double flare metric lines vary from 4 millimeters – 10 millimeters. Lastly, there are bubble flare standard lines, which are from 3/16 inches – ½ inches and bubble flare metric lines that range from 4.75 millimeters – 10 millimeters.

  • The included case is great
  • The kit is ideal for occasional use
  • Comes with instructions on how to make the bubble and double flares
  • Works nicely on copper-nickel, copper, and steel lines
  • Would be better if a tool to taper outside of line was included

1, Neiko 9 Piece ISO/Bubble Flaring Tool Kit (20657A)

Neiko 20657A ISO/Bubble Flaring Tool Kit, 9 Piece | Includes Blow-Molded Case

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We are very happy with this bubble flaring tool kit. Its price is insanely low yet it seems to have all the essential tools to help you create your own brake lines. Needless to say, it is a must-have if you are looking to save a few bucks in the long run. The kit includes 10mm tubing, flaring bar, Yoke assembly, Gauge/wrench, and 4 adapters for 4.75mm, 8mm, and 6mm. It also comes with a blow-molded carrying case to help make storage and organizing everything a breeze. What’s more, this bubble flaring tool kit is built to be universal. It is ideal for foreign vehicles, which, in this case, are European and Japanese. It is also suitable for domestic vehicles such as light trucks, SUVs, and cars. The kit is designed for metric soft steel lines that need a bubble or “ISO” style flare.

  • Tools come in a molded case
  • The written instructions are very easy to follow
  • The clamp grips the brake line nicely
  • Makes exceptional flares that do not leak
  • Not the best for those making a lot of flares


When looking for a bubble flare tool, the first thing you should consider is if it is able to make perfect and professional flares all the time. You should also consider how many tools are there in a flare tool kit. And lastly, you should check the price to make sure you are not going past your budget.

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