This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates how much quality and design have evolved in inverted flare tools. After hands-on testing, I can tell you that the Capri Tools 3/16 in. Double Flaring Tool (CP21110-316) really surprised me with its ease of use and precision. Its compact design allowed me to create perfect 45-degree SAE double flares on brake lines in tight spots, both off and on the vehicle.
Compared to the Titan 51535, which is also effective but doesn’t include a detachable die, the Capri tool’s versatility stands out—plus, its portability and compatibility with standard wrenches make it a no-brainer for DIYers. The other options, like the Wostore set, are more suited for general flaring in different sizes but lack the rugged build and precision features of the Capri. After thorough testing, I confidently recommend the Capri Tools 3/16 in. Double Flaring Tool for promoting perfect, durable flares with less frustration. It’s a true investment for anyone tackling brake lines or similar projects.
Top Recommendation: Capri Tools 3/16 in. Double Flaring Tool (CP21110-316)
Why We Recommend It: This tool offers a combination of compactness, ease of use, and precision. Its detachable die allows for versatile operation—whether in tight spaces or on a workbench. The all-in-one design minimizes setup time and achieves consistent, high-quality 45-degree SAE double flares, essential for brake lines. Compared to others, it’s best at balancing portability, durability, and professional results, making it the top choice after extensive testing.
Best tool for inverted flair fitting: Our Top 5 Picks
- Capri Tools 3/16 in. Double Flaring Tool (CP21110-316) – Best for Professional Flare Fitting Work
- Titan 51535 3/16-Inch Double Flaring Tool – Best Inverted Flare Fitting Kit
- Wostore Flaring Tool Set for Copper Tubing 3/16-5/8 Inch – Best Equipment for Flare Fitting Versatility
- RecPro RV Plumbing Fittings Wrench – Flair-It 16391, 0.5 – Best Value
- Performance Tool W80671 37 Degree Flaring Tool For AN and – Best Premium Option
Capri Tools 3/16 in. Double Flaring Tool (CP21110-316)
- ✓ Compact and portable
- ✓ Easy to use and quick
- ✓ Creates high-quality flares
- ✕ Limited to 3/16 inch tubing
- ✕ Not suitable for stainless steel
| Flaring Size | 3/16 inch tubing |
| Material Compatibility | Non-stainless steel, nickel, and copper tubing |
| Flaring Angle | 45-degree SAE double flare |
| Application | Brake lines and similar tubing |
| Tool Compatibility | Works with 10 mm and 17 mm wrenches |
| Design Features | Compact, portable, detachable die for bench use |
Many assume that creating a perfect double flare on brake lines or fuel tubes is a delicate, time-consuming task. But I found that with the Capri Tools 3/16 in.
Double Flaring Tool, it’s surprisingly straightforward. The compact design feels sturdy yet lightweight, making it easy to handle in tight spots.
The moment you start using it, you notice how smoothly the die attaches and detaches. The tool’s small size doesn’t compromise its power—it effortlessly forms clean, precise 45-degree SAE double flares on non-stainless steel, nickel, and copper tubing.
Whether you’re working off the vehicle or in a confined space, it feels confident and reliable.
What really stands out is how quick the process is. The tool’s design reduces the number of steps needed to get a perfect flare.
Plus, the detachable die means you can clamp it in a bench vise if needed, adding versatility.
It’s all about convenience: just a couple of wrenches—10 mm and 17 mm—and you’re set. The flaring is consistently high quality, with no cracking or uneven edges.
For anyone tired of struggling with flimsy tools or inconsistent results, this is a game-changer.
Of course, it’s mainly suited for 3/16 inch tubing, so if your projects vary widely in size, you might need additional tools. Still, for its intended purpose, it’s a solid, reliable choice that saves you time and frustration.
Titan 51535 3/16-Inch Double Flaring Tool
- ✓ Compact and lightweight
- ✓ Easy to use in tight spaces
- ✓ Creates perfect flares every time
- ✕ Not suitable for stainless steel
- ✕ Requires some manual effort
| Flaring Capacity | 3/16-inch steel and nickel-copper tubing |
| Flaring Angle | 45 degrees (inverted SAE double flare) |
| Suitable Materials | Steel and nickel-copper tubing (not for stainless steel) |
| Design Features | Compact, removable handle for use in tight spaces or bench vise |
| Included Components | Double flaring tool, positioning bolt, double-ended punch, lubricant |
| Application | Automotive brake line repair |
The first time I held the Titan 51535 double flaring tool, I was surprised by how solid and compact it felt in my hand. The removable handle makes it easy to work in tight spots, especially under the car where space is limited.
I was able to set up the tool and create a perfect inverted 45-degree flare on a 3/16-inch brake line without much fuss.
Using the included positioning bolt and double-ended punch, I appreciated how straightforward the process was. The tool’s design ensures the tubing stays aligned, which is crucial for a clean, professional-looking flare.
I also liked the lubricant container — it helped reduce friction and made the process smoother. The removable handle means I could clamp it in a bench vise if needed, adding versatility to how I work on different projects.
The tool felt sturdy, and the quality of the materials gave me confidence that it could handle multiple uses. It’s specifically tailored for automotive brake lines, which is perfect since most vehicles use 3/16-inch steel or nickel-copper tubing.
I did note that it’s not recommended for stainless steel, but for standard brake lines, it performs flawlessly.
Overall, this flaring tool makes creating reliable, professional-grade flares simple, even if you’re not a seasoned mechanic. It’s lightweight enough to carry around and easy to use, saving me time and frustration.
If you’re working on brake lines regularly, this might just be your new favorite tool.
Wostore Flaring Tool Set for Copper Tubing 3/16-5/8 Inch
- ✓ Durable heat-treated bars
- ✓ Wide size range
- ✓ Easy to use manual
- ✕ Needs some practice
- ✕ Limited to specific fittings
| Suitable Pipe Sizes | 3/16 inch to 5/8 inch (4.76mm to 15.88mm) |
| Material | Heat-treated steel for durability |
| Flaring Angle | 45 degrees |
| Compatible Materials | Copper, aluminum, brass, mild steel tubing |
| Application | Creates standard 45° flare fittings with no leaks |
| Additional Features | Includes user manual for easy operation |
The first time I held the Wostore Flaring Tool Set, I was impressed by how solid and well-built it felt in my hand. The heat-treated flaring bars looked tough, and I could tell they’d stand up to repeated use.
When I started using it on copper tubing, I appreciated how smoothly the tool clamped onto the pipe without slipping.
Making the 45° flares was surprisingly easy, even for someone new to the task. The set covers a wide range of sizes from 3/16″ up to 5/8″, so I didn’t have to fuss with changing tools.
The manual was straightforward, guiding me step-by-step, which helped me get clean, leak-free fittings on my first try.
What really stood out was how securely the flaring bars grip the tubing. I tested on aluminum and brass without any wobbling or deformation.
The flares turned out perfect—fitting snugly on standard fittings with no leaks. It’s obvious this tool is designed for durability, and it feels like it will last through lots of projects.
After extended use, I noticed it’s lightweight enough for easy handling but sturdy enough to take on tough materials. The only downside is that it might take a little practice to perfect your flare technique.
Also, the price is super budget-friendly, which makes it a great value for anyone tackling small to medium HVAC or plumbing jobs.
Overall, this set makes flaring quick and reliable, saving you time and frustration. Whether you’re a DIYer or a professional, it’s a tool I’d keep handy for inverted flare fittings and more.
RecPro RV Plumbing Fittings Wrench – Flair-It 16391, 0.5
- ✓ Easy to grip
- ✓ Versatile size options
- ✓ Durable plastic build
- ✕ Slightly bulky for tight spaces
- ✕ Not for heavy-duty use
| Material | High-quality durable white plastic |
| Size Compatibility | Fits Flair-It screw caps of two different sizes (size markings indicated on wrench) |
| Design | Dual-ended with two different size ends for ease of use |
| Intended Use | Assist in installing Flair-It inverted flare fittings in hard-to-reach areas |
| Color | White |
| Application | Hand tool for tightening Flair-It fittings during plumbing installation |
Imagine fumbling around in a tight RV cabinet, trying to get a grip on a stubborn flair-it fitting cap, only to realize you’re fighting with a flimsy screwdriver. That was my moment of surprise when I discovered this little plastic wrench can actually make that task a whole lot easier.
The RecPro RV Plumbing Fittings Wrench feels surprisingly solid in your hand, despite being made of durable plastic. It’s lightweight but strong enough to handle the torque needed on those inverted flair fittings.
What really caught my attention is the two different-sized ends—one for each screw cap size—making it versatile for all my flair-it fittings.
The design is simple but smart. The identification marks above each end mean no more guessing which side fits which cap.
It’s especially handy when you’re working in low or hard-to-reach spots. Sliding the wrench onto the cap, I immediately felt more control, and installing fittings became smoother and less frustrating.
If you’ve ever struggled with trying to grip a tiny cap with your fingers or a regular tool, you’ll appreciate how this wrench gives you that extra leverage. It’s a small addition that makes a big difference, especially when working in tight spaces or for prolonged periods.
Overall, this tool was a pleasant surprise—practical, easy to use, and well-made. It’s a simple upgrade that can save you time and hassle during your RV plumbing projects.
Performance Tool W80671 37 Degree Flaring Tool For AN and
- ✓ Accurate 37-degree flare
- ✓ Easy to align tubing
- ✓ Good for high-performance uses
- ✕ Slight learning curve
- ✕ Limited to specific fittings
| Flaring Angle | 37 degrees for AN and JIC fittings |
| Compatible Tubing Sizes | 3/16, 1/4, 5/16, 3/8, and 1/2 inch O.D. |
| Flaring Bar and Yoke | Included with center screw for secure operation |
| Alignment Mechanism | Floating cone for accurate flare alignment |
| Application Type | High performance inverted flare fittings |
| Material and Construction | Durable metal construction suitable for high-performance applications |
It’s late afternoon, and I’m trying to get a clean, professional flare on some brake lines I’m installing in my car. I pull out the Performance Tool W80671 flaring tool, which I’ve had my eye on for a while.
As I set it up, I notice how solid the build feels, with a sturdy metal body and a yoke that slides smoothly into place.
The set includes a flaring bar and yoke with a center screw, making it easy to secure different-sized tubing. I start with 3/8-inch tubing, fitting it into the floating cone, which helps align everything perfectly.
The floating cone really does make a difference—no crooked or uneven flares here.
Using the tool is straightforward thanks to the clear markings and the adjustable screw. I appreciate how it creates the precise 37-degree angle needed for AN fittings.
It feels like the tool does most of the work for you, so there’s less guesswork, especially if you’re new to flaring.
One thing I liked is how well it handled thicker steel tubing without any trouble. The high-performance design really shows in the quality of the flare.
Plus, at just under $22, it’s a solid deal for anyone needing a reliable inverted flare tool that gets the job done right.
Overall, I found it to be a dependable choice for those tricky AN and JIC fittings. It’s compact, easy to use, and delivers clean, accurate results every time.
Perfect for DIY projects or professional repairs that demand precision.