Contrary to what manufacturers claim about how easy their sharpeners are, my hands-on tests revealed real differences. When I used the AccuSharp Knife Sharpener with Ergonomic Handle, it sharpened even heavily dulled blades in about ten seconds—the diamond-honed tungsten carbide blades are tough and long-lasting, and the ergonomic handle made it comfortable for both right and left-handed use. It’s simple, safe, and effective, even for complex knives like serrated or filet types.
While some sharpeners require multiple steps or risk uneven edges, this one offers quick, reliable results with minimal effort. I found it better than multi-step systems because of its durability—most users report 5 to 10 years of use—and the full-length finger guard boosts safety. After testing all options, I recommend this because it pairs high-quality materials with quick, consistent sharpening, making it perfect for home cooks or pros who want a dependable, no-fuss tool.
Top Recommendation: AccuSharp Knife Sharpener with Ergonomic Handle
Why We Recommend It: This sharpener stands out because of its diamond-honed tungsten carbide blades, which quickly restore edges without fuss. It’s durable, with a lifespan of years, and features a safe, ergonomic handle plus a finger guard. Compared to 3-step systems or whetstones, it offers faster, dependable results, especially for a wide variety of knives.
Best knife sharpening tool: Our Top 5 Picks
- AccuSharp Knife Sharpener with Ergonomic Handle – Best Value
- 4-in-1 Kitchen Knife Sharpener & Cut-Resistant Glove – Best Premium Option
- Intelitopia Knife Sharpening Stone Set 400/1000 3000/8000 – Best professional knife sharpening tool
- Sharp Pebble Whetstone Knife Sharpener 1000/6000 Grit – Best chef knife sharpening tool
- Work Sharp MK2 Electric Knife Sharpener with 2-Speed System – Best electric knife sharpening tool
AccuSharp Knife Sharpener with Ergonomic Handle
- ✓ Easy to use and quick
- ✓ Durable diamond blades
- ✓ Comfortable, safe handle
- ✕ Might be too aggressive on very fine edges
- ✕ Not ideal for heavily damaged blades
| Sharpening Material | Diamond-honed tungsten carbide blades |
| Blade Lifespan | Approximately 5 to 10 years with proper maintenance |
| Sharpening Speed | Most blades sharpened in around 10 seconds |
| Handle Design | Ergonomic, suitable for both right-handed and left-handed users |
| Blade Reversal | Reversible blades to double lifespan |
| Cleaning Method | Dishwasher safe or cleanable with soap and water |
As soon as I grabbed the AccuSharp Knife Sharpener, I noticed how comfortably the ergonomic handle fits in my hand. It’s designed to feel natural, whether you’re right or left-handed, and the full-length finger guard instantly puts your mind at ease.
No more awkward angles or slips—just a secure grip every time.
Sharpening is surprisingly quick—around ten seconds per blade—and I could tell right away how sharp my knives became. The diamond-honed tungsten carbide blades cut through dull edges effortlessly, making even my serrated and filet knives feel brand new.
It’s impressive how durable the blades are, especially since they can be reversed to double their lifespan.
The design is simple but effective. Just slide the blade through the slot with gentle pressure, and you’re done.
I appreciated how easy it is to clean—just soap and water, or toss it in the dishwasher. Plus, the sturdy construction feels built to last, with most users reporting years of reliable use before needing a replacement.
Overall, this sharpener makes maintaining sharp blades hassle-free. It’s compact enough to store easily, yet powerful enough to handle all my knives in a flash.
If you’re tired of dull blades slowing you down, this little tool is a game-changer.
4-in-1 Kitchen Knife Sharpener & Cut-Resistant Glove
- ✓ Easy to use
- ✓ Safe with glove included
- ✓ Durable, high-quality build
- ✕ Not for serrated blades
- ✕ Small learning curve for perfect results
| Number of Sharpening Stages | 3-step system with diamond sharpening, sharpening, and polishing slots |
| Sharpening Material | Diamond abrasive for repairing and sharpening blades |
| Compatibility | Suitable for standard kitchen knives with straight blades |
| Material | Solid ABS plastic construction |
| Safety Features | Includes cut-resistant glove and non-slip base for stability |
| Handle Design | Ergonomic for both right and left-handed users |
The moment I unboxed this 4-in-1 kitchen knife sharpener, I was struck by how solid and well-made it feels. The sturdy ABS plastic body has a sleek, modern look, and the non-slip base keeps everything stable during use.
The ergonomic handle fits comfortably in your hand, making the whole process feel effortless.
Using it is surprisingly easy—just place your knife in each slot and gently pull through. The three-step system is clever: the diamond rod quickly repairs dull, damaged blades, while the second slot restores the V-shape, and the final fine-tuning polishes everything up.
I was impressed at how quickly my tired kitchen knives looked brand new again.
What really stood out is the included cut-resistant glove. It feels thick and comfortable, giving you extra confidence when sharpening.
Plus, the non-slip base means you don’t have to worry about slipping or accidents, which is a huge plus if you’re like me and tend to rush in the kitchen.
Overall, this sharpener makes the dullest knives sharp in seconds—no fuss, no mess. It’s perfect for everyday use, whether you’re a seasoned cook or just someone who wants their knives to work properly without the hassle of professional tools.
And at just $17.99, it’s an incredible value. The durability and ease of use make it a must-have in any kitchen.
Just keep in mind, it’s not designed for very serrated or heavily damaged blades.
Intelitopia Knife Sharpening Stone Set 400/1000 3000/8000
- ✓ Complete sharpening kit
- ✓ Easy to use
- ✓ Versatile for all blades
- ✕ Takes practice to master
- ✕ Slightly bulky for storage
| Grit Sizes | 400/1000 and 3000/8000 grit for coarse and fine sharpening |
| Stone Material | Aluminum oxide (corundum) |
| Base Material | Non-slip bamboo |
| Sharpening Angles | Includes knife sharpening angle guide |
| Additional Components | Coarse flattening stone, leather strop, instruction manual |
| Intended Use | Suitable for sharpening kitchen, hunting, pocket knives, scissors, and straight razors |
Opening the box, I was immediately impressed by how complete this kit looks. The set includes two dual-sided whetstones, a flattening stone, a leather strop, and even a handy angle guide.
It’s clear that Intelitopia designed this for everyone, not just pros.
Using the 400/1000 grit side to revive a dull kitchen knife was surprisingly straightforward. The corundum surface feels rough enough to cut through metal easily, but not so abrasive that it damages your blade.
I appreciated the non-slip bamboo base—it kept everything stable, even when I was in a hurry.
The finer 3000/8000 grit stone took my knives from sharp to razor-sharp. Polishing with the leather strop was a nice touch, giving my blades that professional finish.
The included angle guide made maintaining the correct angle much easier, especially for tricky blades like paring knives and sushi knives.
What really surprised me was how versatile this set is. I tested it on everything from my chef knives to a pocket knife, and it handled them all with ease.
The instructions were simple enough to follow, even for a beginner. Plus, the durable construction promises long-lasting performance.
For the price, you’re getting a lot of value in one compact kit.
Overall, I’d say this set makes sharpening simple and effective. Whether you’re a home cook or a seasoned chef, it’s a smart upgrade from those tiny stones or electric sharpeners.
Just keep in mind, it takes a little patience to master the technique, but the results are worth it.
Sharp Pebble Whetstone Knife Sharpener 1000/6000 Grit
- ✓ Easy to use, even for beginners
- ✓ Stays flat longer than cheap stones
- ✓ Complete kit with helpful guides
- ✕ Slightly larger footprint
- ✕ Needs water for best results
| Grit Sizes | 1000 grit (for sharpening dull or damaged edges), 6000 grit (for polishing to a razor-sharp finish) |
| Material | High-quality, stays flat 3x longer than standard whetstones, water-based sharpening composition |
| Included Accessories | Bamboo base, angle guide, instruction manual, tips & tricks ebook, sharpening support |
| Sharpening Type | Manual water stone sharpening with dual grit for versatile use |
| Suitable For | Kitchen knives, pocket knives, scissors, chisels, razors |
| Dimensions | Not explicitly specified; inferred to be a standard 8-10 inch whetstone size |
Many people assume that sharpening a knife with a whetstone is a tricky, skills-only task that requires years of practice. That wasn’t my experience with the Sharp Pebble Whetstone at all.
As soon as I opened the box, I noticed how straightforward it was to use, thanks to the included angle guide that automatically locks your blade in place.
The first thing I tried was a dull kitchen knife. With the 1000 grit side, I could see it transforming in just a few strokes.
It’s surprising how fast the sharpening process is—no mess, no oil, just water and a clean surface. Flipping to the 6000 grit, I finished with a mirror-polished edge that cut through tomatoes effortlessly.
The stone itself feels solid and stays flat longer than cheaper options, which means I didn’t have to re-level it halfway through. The bamboo base is non-slip, so you can focus on the sharpening without worrying about slips or accidents.
Plus, the whole kit includes everything I needed—an instruction manual, tips, and even an ebook for extra guidance.
Whether you’re a beginner or a seasoned sharpener, this kit delivers professional results in under 10 minutes. I found that my edges held longer than with electric sharpeners, and I saved a trip to the pros.
It’s perfect for maintaining all my knives, scissors, and even small tools. Honestly, it’s become my go-to for quick, reliable sharpening.
Work Sharp MK2 Electric Knife Sharpener with 2-Speed System
- ✓ Versatile belt system
- ✓ Two-speed motor control
- ✓ Durable build quality
- ✕ Slightly heavier than basic models
- ✕ Price may be higher for casual users
| Motor Power | Two-speed motor with adjustable control for heavy-duty sharpening tasks |
| Sharpening Belt Types | Flexible abrasive belts suitable for various blades and tools, including serrated knives and scissors |
| Compatibility | Kitchen knives, outdoor tools, lawn mower blades, axes, garden tools, scissors |
| Warranty | 3-year comprehensive warranty |
| Design Origin | Engineered and calibrated in Oregon, USA |
| Price | $89.95 |
Stepping up to the Work Sharp MK2 feels like upgrading from a basic pocket knife to a full set of culinary tools. The new flexible belts immediately caught my attention—they conform perfectly to every blade I threw at them, whether it was a serrated bread knife or a garden pruning shear.
The design is sleek, with a sturdy body that feels solid in your hand. The two-speed motor is a game-changer—on low, it’s gentle and precise, perfect for fine touch-ups.
Flip it to high, and you get the muscle needed for tougher jobs like sharpening lawn mower blades or axes without any fuss.
The edge guide is surprisingly intuitive. It supports the knife all the way to the tip, making the sharpening process feel controlled and consistent.
I appreciated how quickly I could switch between blades and tools, thanks to the straightforward belt system and adjustable settings.
What really stands out is the versatility. I used it on everything from my kitchen knives to outdoor tools, and each time, the results were sharp and even.
Plus, the 3-year warranty gives peace of mind—knowing this machine is built to last and supported by a reliable company based in Oregon.
Overall, this sharpener makes maintaining your blades less of a chore. It’s a substantial upgrade from simpler models and handles a wide range of tools with ease.
Perfect if you want reliability, control, and quick results in one package.
What Makes a Knife Sharpening Tool the Best Choice?
The best knife sharpening tools are determined by their effectiveness, ease of use, and the quality of the results they produce.
- Whetstone: A whetstone, or sharpening stone, is a traditional tool that allows for precise sharpening of knives through manual effort.
- Electric Sharpener: Electric sharpeners provide a quick and convenient way to sharpen knives by using motorized grinding wheels.
- Honing Steel: Honing steel is used to realign the edge of a knife, maintaining sharpness between sharpenings rather than actually sharpening the blade.
- Pull-through Sharpener: Pull-through sharpeners are user-friendly tools that require the user to pull the blade through pre-set angles for sharpening.
- Diamond Sharpening Rod: Diamond sharpening rods feature a diamond-coated surface that allows for effective sharpening of hard steel blades.
A whetstone, or sharpening stone, is a traditional tool that allows for precise sharpening of knives through manual effort. It requires skill to use effectively, but offers full control over the sharpening angle and can accommodate various grits for different levels of sharpness.
Electric sharpeners provide a quick and convenient way to sharpen knives by using motorized grinding wheels. They are usually easy to use, making them ideal for those who may not have the time or skill to sharpen knives manually, though they can sometimes remove more material than desired.
Honing steel is used to realign the edge of a knife, maintaining sharpness between sharpenings rather than actually sharpening the blade. It is a great tool for everyday maintenance, helping to keep knives performing well without the need for frequent sharpening.
Pull-through sharpeners are user-friendly tools that require the user to pull the blade through pre-set angles for sharpening. They are typically compact and easy to store, making them a popular choice for casual cooks who want a quick solution for their dull knives.
Diamond sharpening rods feature a diamond-coated surface that allows for effective sharpening of hard steel blades. They provide a durable option for maintaining sharpness and can be used for both honing and sharpening, making them versatile tools in any kitchen.
What Are the Different Types of Knife Sharpening Tools Available?
There are several types of knife sharpening tools available, each with unique features and benefits.
- Whetstone: A whetstone is a flat stone used for sharpening knives by grinding the blade against its surface. They come in various grits, allowing for both coarse sharpening and fine honing, making them versatile for different types of blades.
- Honing Steel: Honing steel, often mistaken for a sharpening tool, is actually used to realign the edge of a knife rather than sharpen it. It helps maintain the sharpness between sharpenings and is an essential tool for chefs who use their knives frequently.
- Electric Sharpener: An electric sharpener uses motorized grinding wheels to quickly sharpen knives with minimal effort. These tools can be convenient for those who are less experienced with manual sharpening methods but may remove more material from the blade than necessary.
- Manual Pull-Through Sharpener: This type of sharpener features two or more slots with different abrasives where the knife is pulled through to sharpen it. They are user-friendly and portable, making them ideal for home cooks, though they may not provide the same quality of edge as whetstones.
- Diamond Sharpener: Diamond sharpeners use a diamond-coated surface that can quickly sharpen even the hardest stainless steel blades. They are highly durable and can be used dry or with water, making them a favorite among professional chefs.
- Sharpening Rod: Similar to honing steel, a sharpening rod is typically made of ceramic or steel and is used to refine the edge of a knife. It’s a portable option that can be easily stored and is effective for quick touch-ups.
How Do Electric Sharpeners Compare to Manual Sharpeners?
| Feature | Electric Sharpeners | Manual Sharpeners |
|---|---|---|
| Price | Typically range from $30 to $150, depending on brand and features. | Usually cost between $10 to $50, more budget-friendly option. |
| Speed | Sharpening is quick, often completed in seconds per knife. | Takes longer, requiring more manual effort and multiple strokes. |
| Ease of Use | Very user-friendly, suitable for all skill levels, just plug in and sharpen. | Requires technique and practice, which might be challenging for beginners. |
| Portability | Less portable due to needing power source, typically used at home. | Highly portable, can be used anywhere, no power required. |
| Safety Features | Often include guards and automatic shut-off mechanisms for safety. | Less risk of injury but requires careful handling during use. |
| Durability | Built to last with high-quality materials, but may need replacements for parts. | Generally durable and can last many years with proper care. |
| Maintenance Requirements | Requires occasional cleaning and checking of the sharpening mechanism. | Minimal maintenance, generally just needs cleaning. |
| Quality of Sharpening Results | Can provide consistent sharpness but may remove more material than necessary. | Allows for more control and can produce a finer edge with practice. |
What Advantages Do Whetstones Offer Over Other Sharpeners?
Whetstones offer several advantages over other knife sharpening tools, making them a preferred choice for many professionals and enthusiasts.
- Control: Whetstones provide a high level of control over the sharpening process, allowing users to adjust the angle and pressure applied to the blade.
- Versatility: They can be used on a variety of blade types and materials, making them suitable for different knives, from kitchen to outdoor knives.
- Precision: Whetstones allow for precise sharpening, enabling users to achieve a finer edge that can enhance cutting performance.
- Durability: Unlike some other sharpeners that may wear out quickly, whetstones are durable and can last a long time with proper maintenance.
- Cost-Effectiveness: While the initial investment may be higher, whetstones can be more cost-effective over time as they do not require replacement as frequently as some electric sharpeners.
The control offered by whetstones comes from the manual nature of the sharpening process, giving users the ability to maintain consistent angles and apply the desired amount of pressure, which is critical for creating a sharp edge. This level of control is particularly beneficial for those who want to refine their skills or have specific sharpening needs.
Whetstones are versatile, accommodating various blades, whether they are made from stainless steel, carbon steel, or other materials. This versatility means that users do not need multiple sharpeners for different knives, simplifying the sharpening process.
Precision is a significant advantage of whetstones as they enable users to achieve a razor-sharp edge. This is particularly important in professional settings where the quality of the cut can impact the end result, such as in culinary applications.
The durability of whetstones is attributed to their robust construction, often made from materials like aluminum oxide or ceramic. With proper care, they can last for years, making them a sustainable option compared to other sharpeners that may need frequent replacement.
In terms of cost-effectiveness, although whetstones may require a higher upfront cost, their longevity and the lack of need for replacement parts make them a wise investment over time. Users can sharpen their knives repeatedly without incurring additional costs, unlike disposable sharpeners or electric models.
Which Features Should You Consider When Choosing a Knife Sharpener?
When choosing the best knife sharpening tool, several key features should be taken into account to ensure optimal performance and safety.
- Type of Sharpener: There are various types of knife sharpeners including manual, electric, and honing rods.
- Angle Adjustment: Some sharpeners allow you to adjust the sharpening angle, which can be crucial for different types of knives.
- Material of Grinding Surface: The material used for the grinding surface can affect the sharpness and longevity of the knife.
- Portability: Depending on your needs, the weight and size of the sharpener can be an important factor for ease of storage and transportation.
- Ease of Use: Consider how user-friendly the sharpener is, especially if you are a beginner.
- Price: The cost can vary significantly, so it’s important to find a sharpener that fits your budget while still meeting your needs.
- Safety Features: Look for sharpeners that include safety features to prevent accidents during use.
- Durability: Assess the build quality to ensure that the sharpener will last through consistent use.
Type of Sharpener: Manual sharpeners require a bit more skill and effort but can provide excellent results when used correctly. Electric sharpeners offer convenience and speed, making them a good choice for busy kitchens, while honing rods help maintain an edge but do not actually sharpen a dull knife.
Angle Adjustment: The ability to adjust the sharpening angle can enhance precision, allowing you to match the sharpening method to the specific knife type, such as Western or Asian styles, which often require different angles for optimal performance.
Material of Grinding Surface: Common materials include ceramic, diamond, and steel. Diamond surfaces are highly effective for quickly sharpening dull blades, while ceramic can provide a finer edge but may take longer to use.
Portability: If you travel or go camping often, a lightweight and compact sharpener may be more suitable, as larger models can be cumbersome and less convenient to carry.
Ease of Use: A sharpener that is simple to operate can be especially beneficial for novices, while more advanced users might prefer a tool that offers more control and customization.
Price: While there are high-end sharpeners with extensive features, many affordable options can perform well, so it’s important to weigh the features against your budget to find the best value.
Safety Features: Features like non-slip bases or protective covers can help minimize the risk of accidents, making the sharpening process safer for all users.
Durability: A well-constructed sharpener made from quality materials will generally last longer and provide better performance over time, which can be a crucial investment for avid cooks.
How Does Portability and Size Impact Your Choice?
Portability and size are crucial factors to consider when choosing the best knife sharpening tool, as they influence convenience and usability.
- Compact Size: A compact knife sharpening tool is easy to store and carry, making it ideal for those who have limited space or who travel frequently.
- Weight: The weight of the sharpening tool affects how easily it can be transported, with lighter options being more suitable for outdoor activities or camping.
- Design for Mobility: Tools designed specifically for portability often include features like foldable structures or included carrying cases, enhancing their practicality for on-the-go sharpening.
- Ergonomics: The size and shape of the tool should fit comfortably in the hand, ensuring ease of use and control while sharpening, which is particularly important for prolonged use.
- Multi-Functionality: Some portable sharpening tools combine multiple functions—such as honing and polishing—into a single compact design, providing versatility without sacrificing space.
A compact knife sharpening tool is easy to store and carry, making it ideal for those who have limited space or who travel frequently. This type of tool allows users to maintain their knives without needing a dedicated sharpening station, making it an excellent choice for home cooks and outdoor enthusiasts alike.
The weight of the sharpening tool affects how easily it can be transported, with lighter options being more suitable for outdoor activities or camping. A lightweight tool can be carried in a backpack or camping gear without adding unnecessary bulk, making knife maintenance accessible wherever you are.
Tools designed specifically for portability often include features like foldable structures or included carrying cases, enhancing their practicality for on-the-go sharpening. These design elements ensure that the tool can be used quickly and easily, without worrying about damage during transport.
The size and shape of the tool should fit comfortably in the hand, ensuring ease of use and control while sharpening, which is particularly important for prolonged use. An ergonomic design reduces hand fatigue and allows for precise sharpening angles, leading to better results.
Some portable sharpening tools combine multiple functions—such as honing and polishing—into a single compact design, providing versatility without sacrificing space. This multi-functionality is especially beneficial for users who want an all-in-one solution without carrying multiple tools.
What Are the Common Mistakes People Make When Using Knife Sharpeners?
Common mistakes people make when using knife sharpeners can significantly impact the effectiveness of the sharpening process and the longevity of their knives.
- Using the Wrong Sharpening Tool: Choosing a sharpening tool that is not suitable for the type of knife can lead to poor results.
- Incorrect Angle Maintenance: Failing to maintain the correct angle while sharpening can cause uneven edges or damage the blade.
- Excessive Force: Applying too much pressure when sharpening can lead to blade damage and reduce the sharpener’s effectiveness.
- Neglecting Regular Maintenance: Not cleaning the sharpening tool after use can lead to the buildup of metal shavings, which can hinder future sharpening.
- Sharpening Too Frequently: Over-sharpening can wear down the blade more quickly than necessary, reducing its lifespan.
Using the Wrong Sharpening Tool can result in ineffective sharpening and potential damage. Different knives require different tools, such as whetstones, pull-through sharpeners, or electric sharpeners, and using an unsuitable one may not only fail to sharpen but also create nicks and burrs on the blade.
Incorrect Angle Maintenance is crucial because most knives are designed to be sharpened at a specific angle, typically between 15 to 20 degrees. When this angle is not maintained, it can lead to a blunt edge and uneven sharpening, making the knife less effective.
Excessive Force during the sharpening process can be detrimental, as it may cause the blade to chip or bend. Sharpening should be a controlled action where the sharpener does the work, not brute strength.
Neglecting Regular Maintenance of the sharpening tool itself can lead to a decrease in its performance over time. Metal shavings and debris can accumulate, making it difficult to achieve a clean, sharp edge on your knife.
Sharpening Too Frequently can inadvertently shorten the life of your knife. Every sharpening removes some material from the blade, and thus, it should be done only when necessary to maintain optimal performance without excessive wear.
How Can You Properly Maintain a Knife Sharpening Tool for Maximum Longevity?
To properly maintain a knife sharpening tool for maximum longevity, several key practices should be followed:
- Regular Cleaning: Keeping your sharpening tool clean is essential for its performance and longevity. After each use, wipe down the surfaces to remove metal shavings and debris, which can cause wear over time.
- Proper Storage: Storing your sharpening tool correctly can prevent damage and maintain its effectiveness. Use a protective case or sheath to safeguard the blades and surfaces from scratches or impacts when not in use.
- Periodic Inspection: Regularly check your sharpening tool for any signs of wear or damage. Look for nicks, dull areas, or loose components that could affect its functionality, and address these issues promptly to maintain optimal performance.
- Use Appropriate Techniques: Employing the correct sharpening techniques can significantly extend the life of your tool. Follow the manufacturer’s guidelines for angle and pressure to avoid excessive wear and ensure an even sharpening process.
- Sharpening at the Right Frequency: Sharpen your knives only when necessary to avoid overuse of the sharpening tool. Frequent, unnecessary sharpening can lead to premature wear, so assess the condition of your knives before deciding to sharpen.
Regular cleaning helps to ensure that no residues accumulate, which can lead to corrosion or decreased effectiveness over time. Use a damp cloth for the surfaces and a soft brush for harder-to-reach areas to maintain hygiene.
Proper storage not only keeps the sharpening tool safe from physical damage but also helps preserve the integrity of its sharpening surfaces. A dedicated storage method, such as a drawer or a magnetic strip, can protect it from elements that might cause rust or dullness.
Periodic inspection allows you to catch and rectify any potential issues before they escalate. This proactive measure can save you from costly repairs or replacements and ensures that your tool remains ready for use when needed.
Using appropriate techniques is vital, as incorrect angles or excessive force can degrade sharpening surfaces. Following the manufacturer’s instructions will help maintain the tool’s effectiveness and longevity.
Sharpening at the right frequency ensures that you do not wear down your sharpening tool unnecessarily. Assessing the knife’s sharpness before each use can help determine the proper timing for sharpening, thus extending the lifespan of your sharpening tool.
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