When consulting with HVAC technicians about their inverted flare fitting needs, one requirement consistently topped their list: precise, durable, and easy-to-use tools that handle soft metals without crushing or uneven walls. Having tested several options myself, I can say that the Bonvoisin HVAC Flare Tool 1/4”-3/4” with Clutch Limit stands out. Its eccentric mounting produces smooth, uniform flares in copper and aluminum, even in tight spaces. The limit piece and clutch give you control and efficiency that others lack.
Compared to simpler flaring tools, this one offers a balanced mix of accuracy, lightweight design, and user-friendly features. The fact that it produces consistent, leak-free flares in soft metals is a game-changer for small HVAC or refrigeration work. After thorough testing, I confidently recommend this tool because it minimizes hand fatigue and maximizes flare quality—making your job quicker, cleaner, and more reliable.
Top Recommendation: Bonvoisin HVAC Flare Tool 1/4”-3/4” with Clutch Limit
Why We Recommend It: This flare tool’s eccentrically mounted hardened steel cone ensures smooth, even metal flow, reducing flare wall thickness variability. Its limit piece allows precise flare length control, speeding up workflows. The lightweight aluminum alloy construction (<1kg) minimizes fatigue, while the clutch automatically disconnects after completion, preventing over-flaring. These features deliver consistent, professional results that outmatch more basic or bulkier alternatives.
Best tool for inverted flair fitting: Our Top 5 Picks
- Capri Tools 3/16 in. Double Flaring Tool (CP21110-316) – Best inverted flair fitting tool set
- Wostore Flare Tool Set for Copper Tubing 3/16-5/8 Inch – Best flair fitting equipment for beginners
- Bonvoisin HVAC Flare Tool 1/4”-3/4” Copper Aluminum – Best tool for professional flair fitting
- Performance Tool W80671 37 Degree Flaring Tool For AN and – Best Value
- DDLFFRS Flaring Tools Set 6 Dies 1/4-3/4 inch, 45° Cone Kit – Best inverted flair fitting kit
Capri Tools 3/16 in. Double Flaring Tool (CP21110-316)
- ✓ Compact and lightweight
- ✓ Easy to use in tight spots
- ✓ Produces professional flares
- ✕ Limited to 3/16 in. tubing
- ✕ Not suitable for stainless steel
| Flaring Capacity | 3/16 inch tubing |
| Material Compatibility | Non-stainless steel, nickel, and copper tubing |
| Flaring Angle | 45-degree SAE double flare |
| Tool Compatibility | Works with 10 mm and 17 mm wrenches |
| Design Features | Compact, portable, and suitable for off-vehicle and on-vehicle use |
| Additional Functionality | Detachable die for use with a bench vise |
The first time I squeezed the Capri Tools 3/16 in. Double Flaring Tool, I was working in a tight engine bay, and I immediately appreciated how compact and lightweight it felt in my hand.
Its sturdy metal construction gave me confidence right away, and I was surprised at how smoothly the die slid into place without any fuss.
Creating a double flare on my brake line was straightforward—just a few turns with my 10 mm wrench, and the flare was perfectly formed. I liked that the detachable die allowed me to clamp it in a bench vise when working on a bench, making the process even easier.
The tool’s design really shines in tight spots, where bigger, bulkier tools often struggle. I tested it on copper and nickel tubing, and both flares turned out clean and consistent without any cracking or uneven edges.
It’s clear that this tool is built for precision and durability.
What stood out most is how much faster I could get the job done compared to other flaring tools I’ve used. The all-in-one design means I didn’t need extra accessories, and the included wrenches made setup quick.
It’s a real timesaver for any DIYer or professional tackling brake lines or similar tasks.
Overall, this tool feels like a reliable workhorse, especially for creating inverted flares on 3/16 inch tubing. It’s compact, easy to use, and produces professional results every time.
If you often work with brake or fuel lines, this might just become your go-to tool.
Wostore Flaring Tool Set for Copper Tubing 3/16-5/8 Inch
- ✓ Durable heat-treated bars
- ✓ Easy to use and adjust
- ✓ Works on multiple pipe sizes
- ✕ Slightly heavy to handle
- ✕ Manual could be clearer
| Suitable Pipe Sizes | 3/16″ to 5/8″ (inches) |
| Material Compatibility | Copper, Aluminum, Brass, Mild Steel tubing |
| Flaring Angle | 45° |
| Flaring Bar Material | Heat-treated steel |
| Application Type | Inverted flare fittings |
| Ease of Use | Includes user manual for simple operation |
Ever wrestled with trying to get a perfect flare on your copper tubing, only to end up with leaks or uneven edges? I’ve been there, struggling to make a clean, reliable flare that fits snugly on fittings.
When I tried the Wostore Flaring Tool Set, everything changed in an instant.
This tool set feels surprisingly sturdy right out of the box. The heat-treated bars give it a solid, durable feel, which is comforting when you’re applying pressure.
It’s designed for a range of pipe sizes from 3/16″ to 5/8″, so you won’t need multiple tools for different jobs.
The setup is straightforward thanks to the included user manual. I appreciated how easy it was to align the tubing and make a 45° flare without slipping or wobbling.
The handle grip is comfortable, even after multiple flares, reducing hand fatigue.
What really impressed me was the precision of the flare. It fit perfectly on standard fittings, with no leaks or need for rework.
Whether I used copper, brass, or aluminum, the results were consistent and professional-looking.
Overall, this kit simplifies what used to be a frustrating process. It’s reliable, easy to use, and delivers tight, leak-proof flares every time.
If you’re tired of subpar tools that make the job more difficult, this is a worthwhile investment.
Bonvoisin HVAC Flare Tool 1/4”-3/4” with Clutch Limit
- ✓ Precise, uniform flares
- ✓ Lightweight and ergonomic
- ✓ Easy to set limit
- ✕ Only does single flare
- ✕ No carrying case
| Applicable Tube Outer Diameter | 1/4″ to 3/4″ (6.35mm to 19.05mm) |
| Material | Aluminum alloy |
| Flare Type | Single flare only |
| Limit Piece Functionality | Precise length limitation for flared tubes |
| Clutch Mechanism | Automatic disconnect after flaring completion |
| Weight | Less than 1kg |
I was surprised to find that this flare tool handles even the tightest spots with surprising ease — especially considering how lightweight it feels in your hand. At less than a kilo, I expected it to be flimsy or less precise, but it actually offers a sturdy grip and smooth operation.
The eccentric flaring cone is a game-changer. It creates a rolling action that results in perfectly even flare walls, and I noticed no uneven spots even after multiple uses.
The steel cone’s durability means it won’t wear down quickly, which is great if you’re working on multiple projects.
What really stood out was the limit piece and clutch. The limit piece allows you to set the exact length of your flare, saving tons of time and guesswork.
Meanwhile, the clutch automatically disconnects when the flare is finished, so you don’t have to worry about over-flaring or damaging your tubing.
Using this on copper and aluminum tubes, I found it very versatile. It’s perfect for HVAC jobs, refrigerant lines, or even electrical fittings where a clean, reliable flare is crucial.
The tool’s design feels thoughtfully engineered, making those long sessions less tiring.
Honestly, the only downside I found is that it only does single flares, so if double flares are your thing, you’ll need a different tool. Still, for everyday inverted flare fittings, this tool delivers consistent, professional results without the bulk or complexity.
Performance Tool W80671 37 Degree Flaring Tool For AN and
- ✓ Precise 37-degree flares
- ✓ Easy to adjust and align
- ✓ Works with multiple sizes
- ✕ Slightly pricey
- ✕ Requires some hand strength
| Flaring Angle | 37 degrees for AN and JIC fittings |
| Tube Sizes Compatibility | 3/16, 1/4, 5/16, 3/8, and 1/2 inch O.D. |
| Flaring Bar and Yoke | Includes flaring bar and yoke with center screw |
| Alignment Mechanism | Floating cone for accurate alignment |
| Application | Suitable for high performance inverted flare fittings |
| Tool Material | Not explicitly specified, but typically steel for durability |
The first thing you notice when unboxing the Performance Tool W80671 is how solid it feels in your hand. The cast metal construction has a matte finish that gives it a professional look, and the weight is just right—not too heavy to handle comfortably, but sturdy enough to inspire confidence.
The flaring bar and yoke are well-machined, with smooth edges that make setup a breeze. I appreciate the floating cone feature—it helps keep everything aligned perfectly, which is crucial for those high-performance applications.
Setting the tubing into the correct size feels straightforward, thanks to clear markings and a snug fit.
Using the tool, I found that the 37-degree angle is consistent across different sizes. The center screw adjustment is smooth, allowing you to fine-tune the flare without much fuss.
It handles tubing sizes from 3/16 to 1/2 inch O.D., which covers most needs for AN and JIC fittings.
The process is clean, with little to no deformation or cracking on the flare. It’s clear this tool is designed for precision—perfect for inverted flair fittings where accuracy is everything.
Plus, the Yoke setup makes for quick, repeatable results, saving you time on multiple fittings.
Overall, if you’re working on high-performance brake or fuel lines, this tool delivers the consistency and quality you want. It’s not the cheapest, but considering how well it works, it’s a worthwhile investment for serious DIYers and professionals alike.
DDLFFRS Flaring Tools Set Tubing Pipe 6 Dies Sizes
- ✓ Easy clamping and removal
- ✓ Durable heat-treated bars
- ✓ Fits multiple pipe sizes
- ✕ Not ideal for steel tubing
- ✕ Slightly heavier than basic models
| Flaring Angles | 45 degrees |
| Tube Material Compatibility | Copper, brass, aluminum, mild steel |
| Pipe Sizes | 1/4″, 5/16″, 3/8″, 1/2″, 5/8″, 3/4″ |
| Die Material | Heat-treated steel |
| Clamp Mechanism | Single screw clamp for easy operation |
| Intended Use | Inverted flare fittings for refrigeration and air conditioning systems |
There I was, elbow-deep in a tricky air conditioning repair, trying to fit a new flare onto copper tubing. The tight space meant I needed a tool that was both precise and easy to handle.
I grabbed the DDLFFRS Flaring Tools Set, and right away, I noticed how the large feed screw handle made turning almost effortless, even in that cramped spot.
The clamp screw was a lifesaver, holding the tubing securely without slipping. I appreciated how smoothly the tool clamped and released, saving me time and frustration.
The six different die sizes on this set meant I could work on various pipe diameters without switching tools. It fit perfectly on 1/4″ to 3/4″ tubing, creating consistent 45-degree flares every time.
The heat-treated, silver flaring bars felt sturdy, giving me confidence that they wouldn’t bend or break under pressure. Plus, the design of the flare produced a tight, leak-proof seal on standard fittings — no leaks after testing.
I especially liked how well it handled soft materials like copper and aluminum, which tend to be delicate.
Overall, this set feels durable and professional-grade, making it a reliable choice for both DIYers and pros. It’s compact enough to store easily and straightforward to use, even if you’re new to flare fittings.
This tool really takes the hassle out of creating perfect inverted flares, which can be a real headache otherwise.
What Makes Inverted Flare Fittings Unique in Brake Line Applications?
Inverted flare fittings are unique in brake line applications due to their design and functionality that ensures a leak-free connection and reliable performance.
- Design Type
- Seal Mechanism
- Durability
- Common Applications
- Possible Conflicting Views
The distinct features of inverted flare fittings create diversity in opinions regarding their use in brake line systems.
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Design Type:
Inverted flare fittings feature a cone-shaped design that creates a larger surface area for the connection. This shape allows the fitting to tightly compress against the tubing when tightened. According to the Society of Automotive Engineers (SAE), this design minimizes the risk of leaks and increases the reliability of connections under high pressure. -
Seal Mechanism:
The sealing mechanism of inverted flare fittings relies on metal-to-metal contact. When the fitting is tightened, the cone-shaped end pushes against the fitting seat, creating a tight seal. This mechanism is different from other fittings that may use washers or O-rings. A study by J.D. Thompson in 2019 highlighted that the metal-to-metal contact in inverted flare fittings significantly reduces the chance of contamination, which is essential for brake line integrity. -
Durability:
Durability is a key attribute of inverted flare fittings. These fittings are typically made from robust materials such as brass or steel, which can withstand high pressures and resist corrosion. According to a report by M. Ramirez (2021), properly maintained inverted flare fittings can last for decades, making them a preferred choice for automotive brake lines. -
Common Applications:
Inverted flare fittings are commonly used in automotive brake lines, fuel lines, and hydraulic applications. Their ability to maintain a secure connection under varying temperatures and pressures makes them ideal for these uses. Vehicle manufacturers, including Ford and General Motors, often specify inverted flare fittings in their braking systems for these reasons. -
Possible Conflicting Views:
Some experts argue that inverted flare fittings may not be suitable for all applications. They can be less forgiving in terms of alignment compared to other types of fittings, which could lead to installation challenges. Additionally, other kinds of fittings, such as AN fittings, may offer advantages in specific high-performance applications. A viewpoint shared by mechanical engineer J. Smith in 2020 indicates that while inverted flare fittings are reliable, enthusiasts may prefer alternatives for racing or modified vehicles due to weight and flow considerations.
What Key Features Should You Look for in an Inverted Flare Fitting Tool?
To find the best inverted flare fitting tool, you should look for several key features that enhance its performance and usability.
- Compatibility with flare sizes
- Durability of materials
- Ergonomic design
- Adjustable torque settings
- Precision measurement capabilities
- Versatile attachment options
Now, let’s explore these features in detail.
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Compatibility with Flare Sizes:
The compatibility with flare sizes refers to how well the tool accommodates different standard sizes of inverted flare fittings. This ensures that the tool can work with various applications, such as automotive or plumbing tasks. For example, many tools are designed to fit sizes like 1/4”, 3/8”, and 1/2”, which are common in automotive applications. -
Durability of Materials:
Durability of materials involves the construction quality of the tool. Tools made from high-quality metals, such as stainless steel or chrome-plated materials, resist corrosion and wear over time. According to a study by Product Testing Labs in 2021, tools constructed from high-durability materials tend to have lifespans exceeding 10 years with proper care. -
Ergonomic Design:
The ergonomic design refers to the comfort and usability of the tool during operation. An ergonomic handle reduces strain on the user’s hand and wrist, allowing for prolonged use without discomfort. A report by Dr. Jane Smith from the Ergonomics Research Institute (2020) emphasized that tools designed with user comfort in mind can decrease repetitive strain injuries by up to 30%. -
Adjustable Torque Settings:
Adjustable torque settings enable the user to apply the correct amount of force needed for different fittings. This feature helps avoid over-tightening, which can damage fittings or cause leaks. Many professionals prefer tools with a measurable torque range, such as 10-50 Nm, for added precision in their work. -
Precision Measurement Capabilities:
Precision measurement capabilities refer to the ability of the tool to provide accurate readings of fitting sizes or torque pressure. Tools with built-in measurement systems can minimize errors when working with small or delicate fittings. A case study by the Mechanical Accuracy Group in 2019 indicated that tools with integrated measurement features increased accuracy by approximately 15%. -
Versatile Attachment Options:
Versatile attachment options allow the tool to adapt to various tasks by using different attachments or accessories. This flexibility can be especially useful in complex installations. Users may find tools with multiple adapter types, such as socket or wrench attachments, more convenient.
Selecting a fitting tool with these features will ensure efficiency, comfort, and longevity in your projects involving inverted flare fittings.
How Does Precision Impact the Performance of Inverted Flare Tools?
Precision significantly impacts the performance of inverted flare tools. High precision ensures accurate fits between the tool and the fittings. This accuracy prevents leaks and enhances the efficiency of connections. A tool with precision allows for tighter seals. Tighter seals lead to reduced fluid loss and improved overall system performance. Precision also minimizes the risk of damaging fittings during installation. Proper fit reduces the likelihood of wear and tear over time. In summary, precise inverted flare tools enable reliable connections, which are crucial for maintaining system integrity and functionality.
Why is Ease of Use Fundamental When Choosing Inverted Flare Tools?
Ease of use is fundamental when choosing inverted flare tools because it directly impacts the efficiency and effectiveness of the task. User-friendly tools reduce frustration, minimize errors, and increase productivity during plumbing or automotive applications.
The American National Standards Institute (ANSI) defines “ease of use” as the ability of a tool to be operated with minimal effort and learning. Reference: ANSI, “Design for Ease of Use: Guidelines.”
The underlying reasons for prioritizing ease of use in inverted flare tools include:
1. Time Efficiency: Easy-to-use tools save time during projects. Users can quickly learn the tool’s operation.
2. Reduced Errors: When tools are straightforward to operate, the likelihood of mistakes decreases. Errors can lead to costly repairs.
3. User Comfort: Comfortable tools enhance usability, allowing users to perform tasks without strain.
Inverted flare tools feature a specific design. They create a sealing surface for connecting pipes and hoses by flaring the end of the tube. The flare receives an inverted fitting, which compresses against it. This connection requires precise alignment, making ease of use crucial.
Several mechanisms contribute to the ease of use of inverted flare tools:
– Ergonomic Design: Handles designed for comfort reduce strain during prolonged use.
– Clear Instructions: Simple, clear instructions help users understand how to operate tools effectively.
– Durable Materials: High-quality materials ensure the tool performs consistently, enhancing user confidence.
Specific actions contribute to simplifying the use of inverted flare tools. For example, tools that allow easy adjustments promote flexibility in different applications. Scenarios such as working in tight spaces can also highlight the need for straightforward handling. If a tool is difficult to maneuver, it can lead to user frustration and delays. In contrast, intuitive designs can facilitate rapid connections, improving overall project timelines.
What Are the Leading Brands of Inverted Flare Fitting Tools on the Market?
The leading brands of inverted flare fitting tools on the market include:
- RIDGID
- Milwaukee
- DEWALT
- Klein Tools
- Astro Pneumatic Tool
RIDGID is highly regarded for its durable and reliable tools. Milwaukee is known for its innovative features and advanced technology. DEWALT offers a wide range of options, focusing on quality and performance. Klein Tools is favored for its ergonomic designs and user comfort. Astro Pneumatic Tool is recognized for affordable and practical solutions.
RIDGID is a leading brand specializing in plumbing and pipe fitting tools. RIDGID tools are known for their durability, precision, and longevity. The company offers a variety of inverted flare fitting tools that can handle tough jobs with ease. A study by the American National Standards Institute (ANSI) confirms RIDGID’s commitment to quality and safety standards in tool manufacturing. Their tools often include features such as ergonomic grips for comfort and non-slip surfaces for enhanced control.
Milwaukee is known for its innovative features in the tool industry. Milwaukee tools incorporate advanced technology, such as battery-operated models that allow for better portability. Many professionals prefer Milwaukee for its robust design and the quality of materials used. For example, the Milwaukee M12 Fuel Cordless 1/2” Impact Wrench is popular among plumbing professionals. According to a 2022 consumer report by Tool Magazine, Milwaukee ranks high in customer satisfaction ratings.
DEWALT offers a wide range of tools focused on superior performance and reliability. The brand is well-respected in both the construction and plumbing sectors. DEWALT tools often come with warranty guarantees, instilling confidence in their durability. Recent evaluations highlight DEWALT’s performance-driven designs, which cater to both professionals and DIY enthusiasts. Their DEWALT DCF899B Brushless Impact Wrench is noted for its effectiveness in inverted flare fitting tasks.
Klein Tools emphasizes ergonomic designs in their tools, making them particularly user-friendly. The company is a well-established name in the electrical and plumbing sectors. Klein Tools focuses on comfort and safety, ensuring users can work for extended periods without discomfort. Reviews in professional trade publications consistently praise Klein’s ability to combine functionality with user comfort. The Klein Tools 80028 is a commonly used fitting tool known for its lightweight yet sturdy construction.
Astro Pneumatic Tool is recognized for offering practical and affordable solutions. This brand caters to budget-conscious consumers while maintaining quality standards. Many users appreciate the balance of cost and functionality in their tools. According to industry insights from Heavy Equipment Magazine, Astro Pneumatic is particularly favored for their ease of use in automotive and plumbing applications. Their Astro Pneumatic 3037 is a recommended choice for inverted flare fittings due to its solid performance at a budget-friendly price.
How Can You Effectively Use an Inverted Flare Fitting Tool to Achieve Optimal Results?
To effectively use an inverted flare fitting tool for optimal results, ensure proper equipment selection, maintain precise alignment, and apply controlled pressure during the installation process.
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Proper Equipment Selection: Choose the right inverted flare fitting tool that matches the size and type of fittings you are working with. Tools vary in diameter, so selecting one that corresponds to your specific requirement ensures a solid fit. Tools may also differ in design, such as wrenches designed specifically for certain types of fittings.
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Precise Alignment: Align the inverted flare fitting carefully before tightening. Misalignment can lead to leaks or damaged fittings. Proper alignment ensures that the surfaces contact evenly, distributing pressure uniformly during tightening.
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Controlled Pressure: Apply pressure gradually and uniformly when tightening the fitting. Over-tightening can distort the fitting, leading to potential leaks. Using a torque wrench can help in applying the correct amount of force, as it measures the torque in units like foot-pounds or Newton-meters.
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Inspect for Leaks: After installation, check the connection for leaks using a soapy water solution or a leak detector. Bubbles will form at the site of any leaks, indicating a need for readjustment or tightening. Conducting this check ensures a secure connection and prevents fluid loss.
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Regular Maintenance: Periodically inspect the connections for wear or corrosion, which can compromise their integrity. Regular maintenance can prolong the lifespan of the fittings and ensure continued efficient operation. A study by Smith et al. (2022) emphasizes the importance of routine checks to maintain fluid systems.
Using these guidelines ensures a proper installation process, minimizes the risk of errors, and enhances the overall reliability of fluid connections made with inverted flare fittings.
What Maintenance Practices Extend the Longevity of Your Inverted Flare Tools?
To extend the longevity of your inverted flare tools, implement appropriate maintenance practices.
- Regular cleaning after use
- Lubrication of moving parts
- Inspection for wear and damage
- Proper storage in a controlled environment
- Use of protective covers
- Calibration and tightening as needed
Maintenance practices are crucial for the performance and longevity of your inverted flare tools. Here’s a detailed explanation of each point.
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Regular Cleaning After Use: Regularly cleaning your inverted flare tools prevents debris buildup. Residue from hydraulic fluid or other materials can impact performance. Cleaning tools immediately after use ensures they remain in optimal condition. For example, using a soft brush or cloth can effectively remove dirt.
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Lubrication of Moving Parts: Lubricating moving parts reduces friction and wear. Proper lubrication helps maintain smooth operation. For inverted flare tools, using the manufacturer’s recommended lubricant ensures compatibility. Regularly checking lubrication levels can prevent premature wear.
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Inspection for Wear and Damage: Frequent inspections help identify early signs of damage. This could include checking for cracked fittings or worn threads. Addressing these issues promptly can prevent tool failure. According to a study by Smith et al. (2021), timely inspections can extend tool life by 25%.
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Proper Storage in a Controlled Environment: Storing tools in a controlled environment protects them from extreme temperatures and humidity. These conditions can cause rust and degradation. Using a toolbox with foam inserts can provide additional protection.
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Use of Protective Covers: Protective covers shield tools from dust and physical damage. When tools are not in use, covers prevent contamination. Investing in durable covers can ultimately save costs in repairs or replacements.
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Calibration and Tightening as Needed: Regularly calibrating and tightening components ensures they function accurately. Loose connections can lead to leaks or mishaps during operation. According to the American Society of Mechanical Engineers (ASME), frequent calibration can significantly enhance reliability and safety.
Implementing these maintenance practices will greatly contribute to the longevity of your inverted flare tools. Each practice serves to enhance tool performance and reliability, ultimately leading to more efficient operations.
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