Hidden Knife

Tracy Preston
19 min readMar 22, 2024

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Are you in search of the perfect hidden knife that doubles as a stylish accessory? Look no further! In our review of the best hidden knives on the market, we’ll showcase their unique features, functionality, and design to help you make an informed decision.

The Top 13 Best Hidden Knife

  1. Double Agent II: A Versatile Cold Steel Knife for Everyday Carry — The Cold Steel 39FN Double Agent II offers ultimate grip and protection with its patent-pending double-ring design, making it an ideal companion for everyday carry or tactical use.
  2. SOG Pentagon FX Blackout: Versatile and Adaptable Fixed Blade Knife — The SOG Pentagon FX Blackout is a versatile and customizable hard-use fixed blade perfect for modern-day warfighters, with its durable CYRO S35VN blade, removable G10 handles, and adaptable sheath system.
  3. Secure and versatile Spec Ops Safety Knife for safe box cutting and handling — Spec Ops Safety Knife with Holster: Safe, versatile, and durable, this utility knife boasts a patented radius-tip blade, two edge guides, adjustable blade depth, and a left/right-hand friendly holster system, perfect for any workplace or warehouse.
  4. CIVIVI Midwatch Fixed Blade Knife with Black Burlap Micarta Handle and N690 Stainless Steel Blade — The Civivi Midwatch FixedBlade C20059B-1 is a versatile tactical fixed blade with a black stonewash N690 blade and black burlap micarta handle, perfect for camping, hunting, and survival situations.
  5. Stylish and Affordable Queen Pocket Knife with Red Handle — Experience the perfect blend of style and functionality with the Queen 30R Slim Trapper Red Handle pocket knife, featuring two top-quality stainless steel blades and a striking design at an affordable price.
  6. Lightweight and Stylish Neck Knife: Cold Steel 49NDE Hide Out — Experience the ultimate in portability and functionality with the Cold Steel 49NDE Hide Out, a small pocket knife designed with a 3-inch satin-finished Japanese Aus 8A stainless steel blade, secure-ex sheath, and comfortable bead chain lanyard.
  7. Portable Pink Pocket Knife with Folding Handle and SK5 Blade — The WorkPro Folding Utility Knife is a sleek, lightweight solution for on-the-go cutting tasks, featuring a quick-change pink box cutter and 12 extra blades stored in a hidden compartment.
  8. Cold Steel Secret Edge 11SDT Knife: Slim, Efficient, and Versatile Neck Knife for Self-Defense — The Cold Steel Secret Edge 11SDT Knife is a discreet, lightweight, and highly efficient neck knife, perfect for self-defense with its secure-ex sheath and fixed blade design, ensuring swift deployment and reliable retention.
  9. Versatile Everyday Carry Knife — The SOG MACV Tool Black is a versatile and durable everyday carry keychain tool perfect for various tasks, boasting twelve basic components and complying with TSA regulations.
  10. Unraveling the Hidden Knife’s Secrets — Discover the enchanting and action-packed world of The Hidden Knife, where stone gargoyles, magical creatures, and heroes unite to reveal the secrets of the court and bring about change for a brighter future.
  11. Starrett Hidden Edge Safety Knife: Easy and Precise Adjustable Cutting Depth — Stay organized and efficient with the Starrett Hidden Edge Utility Knife, featuring a quick-release blade change, adjustable cutting depth, and blade storage for convenience.
  12. China Made Cia Sticker Fixed Triangular Blade Knife with Black Polycarbonate Handle — The M4260 China-made Cia Sticker Knife boasts a stylish triangular blade, black polycarbonate handle, and discrete design, making it an ideal hidden knife for everyday use.
  13. Retractable Motorcycle Handle Knife with LED Lighting — Immerse in a motorcycle-themed tactical experience with a retractable 4" stainless steel blade, complete with working LED headlights and a rust-resistant clip-point design.

Reviews

Double Agent II: A Versatile Cold Steel Knife for Everyday Carry

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The Cold Steel Double Agent II is a versatile knife that I’ve come to rely on in my daily life. This compact and lightweight blade, designed by Zach Whitson, is perfect for concealment and easy to carry with its comfortable grip. The double ring handle system allowed me to effortlessly switch between a forward and reverse grip, providing an extra level of security and control.

The blade length of 3 inches, combined with the 2.3 mm thickness, makes it ideal for various cutting tasks without sacrificing the knife’s portability. The Japanese Aus 8A Stainless steel ensures durability and a sharp edge right out of the box. I was particularly impressed with the Secure-Ex Neck Sheath, which securely keeps the knife in place without any hassle.

One downside I encountered was the sheath’s release tab, which took some practice to master. Additionally, I noticed that the blade could have been a bit thicker for more robust applications. Despite these minor drawbacks, the Cold Steel Double Agent II has proven to be a reliable and convenient tool for my daily activities, making it a worthwhile investment.

SOG Pentagon FX Blackout: Versatile and Adaptable Fixed Blade Knife

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I recently had the opportunity to try out the SOG Pentagon FX Blackout, and let me tell you, it’s a game-changer for anyone who values a reliable, versatile, and customizable fixed blade knife. The Pentagon FX is a full-sized knife designed with the modern-day warfighter in mind, featuring a double-edge S35VN steel blade, removable G10 handles, and a universal mounting system-compatible GRN sheath.

One of the standout features of the Pentagon FX is its ability to adapt to various mission requirements. The handles can be removed for a thinner profile, while the universal mounting system allows for adjustable retention, secondary retention, mounting angle, mounting method, and even a combination of each. The ergonomic design and textured grip of the G10 handles ensure a firm and comfortable grip, even in adverse conditions.

While the Pentagon FX performed exceptionally well in my hands, there were a few minor drawbacks. The blade length of 4.77 inches might be a little longer than ideal for some users, and the black titanium nitride finish can be prone to scratches. However, these issues did not significantly impact my overall positive experience with the knife.

In conclusion, the SOG Pentagon FX Blackout is an outstanding choice for anyone seeking a reliable, adaptable, and customizable fixed blade knife. With its superior build quality, versatile features, and commitment to meeting the demands of modern-day warfighters, this blade is sure to exceed expectations.

Secure and versatile Spec Ops Safety Knife for safe box cutting and handling

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As someone who frequently deals with the hassle of cutting and opening various boxes, the Spec Ops Safety Knife became a reliable and essential tool in my daily routine. Its patented radius-tip blade provides a level of safety and protection while cutting materials such as cardboard. Additionally, the two edge guides grant a sense of precision and accuracy in making top cuts.

What stood out the most was the versatile snap-on holster and lanyard system that catered to both left and right-handed users. The ergonomic handle and squeeze-action trigger provide ultimate control and ensure a secure grip during use. Even being able to access different blade depth settings to accommodate various box sizes is a game-changer, making it a versatile tool suitable for various situations.

However, I did encounter a few drawbacks. The blade’s durability and sharpness seemed to decrease over time, which led to less efficient cutting. In some instances, the blade lock mechanism could be challenging to engage, raising safety concerns. Nonetheless, the storage of an extra blade and the self-retracting feature make it a convenient product to have around the workplace.

In conclusion, the Spec Ops Safety Knife is a handy and versatile tool, best suited for those frequently dealing with boxes and various materials. While it may not be perfect, it offers a variety of features that cater to user needs and preferences.

CIVIVI Midwatch Fixed Blade Knife with Black Burlap Micarta Handle and N690 Stainless Steel Blade

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The Civivi Midwatch FixedBlade, a durable and tactical companion, has proven to be an excellent addition to my outdoor adventures. Its full-tang construction provides a solid feel while the release date of December 9, 2022, ensures a modern and high-quality build.

The N690 stainless steel blade stands out in terms of durability, making it suitable for various tasks like piercing, skinning, and slicing. The wide clip point design provides versatility and makes it great for camping — it can quickly create kindling if no hatchet is available.

The compact size and the easy-to-carry sheath make the Midwatch convenient for outdoor excursions. The black stonewash N690 blade and black burlap micarta handle give the knife a sleek, tactical appearance that sets it apart from other knives in my collection.

Despite its many positive aspects, the Midwatch comes with a Kydex sheath and a black tied paracord lanyard, which may not appeal to everyone’s taste. However, these minor drawbacks do not overshadow the overall experience of this reliable and practical fixed blade.

Stylish and Affordable Queen Pocket Knife with Red Handle

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The Queen Pocket Knife, aptly named the Slim Trapper, is a versatile and stylish companion for any adventure. Crafted with a sleek and slender design, it boasts two stainless steel blades, perfect for handling various tasks.

The knife features a red handle, giving it a bold and eye-catching look. The synthetic construction provides a comfortable grip, while brass pins and liners add a touch of class to its appearance. The knives are non-locking, making them UK-friendly and ideal for every day use.

Overall, the Slim Trapper is a reliable and handsome pocket knife, well-received by its users for its durability and affordability.

Lightweight and Stylish Neck Knife: Cold Steel 49NDE Hide Out

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I’ve had the pleasure of using the Hide Out neck knife for a while now, and I have to say, it’s an excellent little companion. The blade itself is incredibly sharp and lightweight, making it effortless to carry around with you. The Secure-Ex sheath and bead chain lanyard give you that added peace of mind, knowing it won’t easily slip off or fall to the ground.

One thing that really stands out is the handle — it’s designed to give you a secure grip, even with a slim and flat design. The Kray-Ex handle is not only weatherproof but also fits perfectly in your hand, making for a comfortable and secure hold.

However, there are a few things to note. The blade length is a bit smaller than I expected, and because of its slender profile, it might be difficult for some to handle. Additionally, the sheath could use a bit of refining; it’s not the most secure fit when wearing it around your neck.

Overall, I’ve been quite satisfied with the Hide Out neck knife. It’s a reliable and discrete option for a self-defense or emergency tool. It’s not perfect, but it gets the job done and is definitely worth considering for anyone looking for a sleek and functional everyday carry.

Portable Pink Pocket Knife with Folding Handle and SK5 Blade

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Ever since I started using the WorkPro Folding Utility Knife, I’ve found it to be a game changer in my daily work and home life. The lightweight aluminum die-cast handle, with its compact size, really makes a difference in carrying it around with ease.

One of my favorite features is the blade storage compartment hidden within the handle. It’s convenient and ensures the blades are securely stored when not in use. That said, I wish they had included a button to lock the cutter in place when I’m using it, making the experience even more secure.

I also love the fact that I can easily clip it onto my pocket, thanks to the sturdy clip. Having the option to replace the blade, with the 12 extra blades included, is such a thoughtful feature.

The handle is made from high-quality SK5 blade material, providing a durable and long-lasting option. While it can be slightly heavy compared to plastic handles, the sturdiness and longevity make up for this minor inconvenience.

Overall, I find the WorkPro Folding Utility Knife to be a fantastic tool that combines convenience, durability, and aesthetics — just don’t forget to lock the cutter in place while using it!

Cold Steel Secret Edge 11SDT Knife: Slim, Efficient, and Versatile Neck Knife for Self-Defense

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I recently tried the Cold Steel Secret Edge 11SDT Knife, and it has become a staple in my daily life. This sleek and lightweight knife is perfect for those who value unobtrusiveness and effectiveness in their self-defense tools.

One of the standout features of this knife is its width at the base of the blade, which provides cutting power without compromising its sharpness and narrow tip for easy penetration. The edge is so sharp that it’s an impressive sight to see, impressing even my family and friends who weren’t expecting the level of sharpness.

The slim and flat faux G-10 handle, along with its three holes, ensures a comfortable grip that prevents rolling or twisting in the hand. The flat and aggressively textured surface of the handle also offers a good grip for various cutting tasks.

Although the Secret Edge comes with a Secure-Ex sheath for reliable retention, it can be a bit tricky to access and deploy the knife quickly, which would have been a perfect addition to its features.

Overall, the Cold Steel Secret Edge 11SDT Knife is a reliable and efficient tool for those who value self-defense and practicality in their daily life. The combination of cutting power, sharpness, and a comfortable grip make it a great option for those in the market for an unobtrusive, yet highly effective neck knife.

Versatile Everyday Carry Knife

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The SOG MACV Tool Black was a handy companion in my daily life. With its rugged design and versatile functions, I found myself reaching for it in various situations. The 12 basic components in this tool, including the pry bar, bottle opener, and flathead driver, proved to be quite handy in everyday life.

One of the aspects I truly enjoyed about this tool was its durability. Made from durable 3Cr13 stainless steel, the MACV Tool withstood the wear and tear quite well. Furthermore, its compliance with TSA regulations made it perfect for carrying on planes.

However, there were a couple of cons as well. The smaller pry bar made it quite situational and not as effective as it could be. Additionally, some of the screwdriver heads might get lost in the grooves, making them slightly challenging to use.

Overall, the SOG MACV Tool Black was a great addition to my everyday carry and came in handy in many situations.

Unraveling the Hidden Knife’s Secrets

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The Hidden Knife is a thrilling novel that immerses readers into a captivating world where humans and otherworldly creatures coexist. This hardback book, published in 2021, boasts 272 pages filled with magic, adventure, and justice.

The story follows Vicky, a young girl who has grown up with the help of her gargoyle friend, Rupert, as she discovers the truth about her family’s past and the secrets of Corvus. With the support of her new friends, they embark on a journey of self-discovery, unraveling the mysteries of this magical world. As you turn each page, you’ll find yourself enchanted by the wise and wonderful gargoyles, and the bonds they share with humans.

This book is a must-read for fans of Tamora Pierce and Melissa Marr’s enchanting worlds.

Starrett Hidden Edge Safety Knife: Easy and Precise Adjustable Cutting Depth

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The Starrett Hidden Edge Utility Knife is a unique tool that offers both convenience and safety. This innovative knife keeps the blade hidden when not in use, but quickly becomes available by pressing the knife body. With the quick, tool-free blade release, users can effortlessly change the blade without having to disassemble the knife.

One of the standout features is the safety lock that immobilizes the lever, keeping the blade securely hidden inside the knife body. The cutting depth can be easily adjusted with a wheel, providing precise control over the blade’s length. Additionally, the knife boasts two replacement blades stored within the lever, ensuring a fast and hassle-free blade change experience.

However, the product has received mixed reviews. Some users have expressed dissatisfaction with the knife’s plastic housing and mechanisms that can become stuck when changing blades. Others have praised its convenience and safety, making it their go-to choice for their daily tasks.

In my personal experience, the Starrett Hidden Edge Utility Knife has become an essential part of my toolkit. The blade release mechanism makes it easy to switch between blades without any hassle, and the safety lock ensures that the blade is secure when not in use. The cutting depth adjustment feature allows for precise control, which is ideal for various tasks. Although the product has its drawbacks, it has proven to be a valuable addition to my daily life.

China Made Cia Sticker Fixed Triangular Blade Knife with Black Polycarbonate Handle

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I had the pleasure of trying out the M4260 Cia Sticker Knife, a sleek and versatile tool that blends aesthetics and functionality. The black polycarbonate handle, with its checkered inlay, provided a comfortable grip, making it easy to handle during everyday tasks. The lanyard hole was oversized, allowing for various attachment options.

The knife has a unique blade design, shaped like a three-sided triangle. It’s fixed, which means it doesn’t fold, and the blade is made of black polycarbonate. There’s a groove on one side that holds the blade cover, and it even has a lanyard slot on it. It’s bulk-packed, just like its description.

Even though it’s made in China, the manufacturer managed to create a knife that, in my opinion, holds its own against some of the premium items on the market. Although it’s a little rough around the edges, the M4260 Cia Sticker Knife is definitely worth considering, especially for its affordable price point. But remember, it may not be the best choice for professional use.

Retractable Motorcycle Handle Knife with LED Lighting

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I recently came across the Collections Etc Retractable Knife Motorcycle with Working Headlights, and I must say, it’s quite the unique tool. The motorcycle-shaped handle, made of solid cast metal, has a comforting finger ridge for a firm grip. What really sets this knife apart though, is the built-in LED flashlight, mimicking the motorcycle’s headlights beautifully.

The blade itself is made of stainless steel, measuring 4 inches long, 8/10 inch wide, and 3mm thick. It’s a clip-point blade, treated for rust resistance and designed to fold closed for easy transportation. As for assembly, I found it to be quite straightforward and satisfying.

However, in line with the product’s reviews, the downside to this knife is that it appears to have some issues with its assembly. Some customers have reported pieces falling off and having to return the item. This certainly wasn’t my experience, but it’s worth considering if you’re contemplating a purchase. Nevertheless, the cool design and practical functions of this motorcycle-inspired knife certainly make it stand out in my collection.

Buyer’s Guide

Hidden knives, also known as concealed knives or switchblades, offer a compact and discreet way to carry a knife. They have become increasingly popular due to their practicality and ease of use. In this buyer’s guide, we will outline the key features to consider when purchasing a hidden knife, provide helpful advice on choosing the right one, and discuss general considerations for owning and maintaining a concealed knife.

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Blade Material and Type

One of the most important factors to consider when purchasing a hidden knife is the blade material. High-quality knives typically feature stainless steel, which offers durability, corrosion resistance, and ease of maintenance. Other materials, such as titanium or Damascus steel, may be more resistant to wear but can also be more expensive.

Locking Mechanism

A sturdy locking mechanism is crucial for ensuring the safety of the user when the knife is open. Look for a reliable liner lock, frame lock, or lockback mechanism that holds the blade securely in place when it is opened. This will prevent accidental openings and help protect against injury. Choose a knife with a locking mechanism that is easy to operate but also difficult to accidentally disengage.

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Size and Portability

Hidden knives come in various sizes, and it is essential to choose one that is comfortable to use and convenient to carry. Consider the overall length of the knife, including the handle and the folded blade, to ensure it can be easily concealed in a pocket or on a keychain. Also, consider the blade length and thickness to ensure it will perform well for your intended purposes.

Maintenance and Care

To keep your hidden knife in good condition and prolong its lifespan, it is essential to properly maintain and care for it. Regularly clean the blade and handle to remove dirt, debris, and residue. Periodically apply a lubricant or protective coating to the locking mechanism to ensure smooth operation. Store the knife in a secure, dry place to protect it from moisture, corrosion, and damage.

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FAQ

How does a hidden knife work?

A hidden knife is a discreet and functional tool designed to be concealed when not in use. It typically features a blade that is enclosed within a handle or another part of the knife when not in use. When needed, the blade can be quickly and easily deployed for cutting purposes. Most hidden knives use a flick or a flip mechnism to reveal the blade, making them easy and quick to use.

Hidden knives come in various designs, some disguising the knife as a pen, lighter, or another everyday object. They can be useful in situations where carrying a traditional knife is not practical or safe, such as in a professional environment or during travel. These knives are designed to provide a convenient and efficient cutting tool that can be easily concealed when not in use.

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Are hidden knives legal to carry?

The legality of carrying a hidden knife varies by location. In some areas, it may be completely legal to carry one, while in others, it may be restricted or even banned outright. It is important to research the specific laws in your area before carrying a hidden knife to avoid any legal issues. If you plan to travel with a hidden knife, it is also crucial to familiarize yourself with the laws of the destination and any requirements for declaring it during security checks.

In general, it is always best to err on the side of caution when it comes to the legality of carrying a knife, whether hidden or otherwise. Before purchasing a hidden knife, make sure you are aware of the laws in your area and that you are legally allowed to carry one. It is also a good idea to keep your knife in a locked container or concealed storage when not in use to reduce the risk of accidentally exposing the blade to unauthorized individuals.

What are the benefits of using a hidden knife?

One of the main benefits of using a hidden knife is its discreet nature. The ability to carry a knife without drawing attention to it can be particularly useful in situations where a traditional knife might be impractical or dangerous, such as in a workplace or a highly populated area. By blending in with everyday objects, a hidden knife can provide a convenient and efficient cutting tool without raising any suspicions or concerns.

Additionally, hidden knives often come in a variety of designs and styles, offering a range of options to suit different preferences and needs. Some hidden knives may be more specialized, like those designed for self-defense or emergency situations. Others may prioritize ease of use or quick deployment. Regardless of the specific design, a well-made hidden knife can offer a practical and convenient solution for a wide range of cutting tasks.

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How do I properly care for and maintain a hidden knife?

To ensure your hidden knife remains in good condition and functions properly, it is essential to properly care for and maintain it. This typically involves regular cleaning, sharpening, and oiling of the knife. Here are some tips on how to care for your hidden knife properly:

  1. Clean the blade and handle after each use with a soft cloth and mild detergent solution. 2) Dry the knife completely before storing it to prevent rust and corrosion. 3) Sharpen the blade using a honing stone or sharpening tool to maintain its cutting edge. 4) Regularly oil the knife’s moving parts, such as the pivot joints, to ensure smooth operation.

Proper storage is also important for a hidden knife. Keep it in a secure, locked container or concealed storage when not in use to prevent accidental exposure and to help maintain its condition. Regularly inspect your hidden knife for signs of wear, damage, or rust, and address any issues promptly to ensure it remains a reliable and functional tool.

What are the most common mistakes made when using a hidden knife?

One of the most common mistakes when using a hidden knife is not properly deploying the blade. Some hidden knives require a specific technique, like flicking or flipping the blade, to reveal the cutting edge. Failing to execute the proper deployment method can result in the blade not being fully released or may even lead to injury. It is essential to practice deploying your hidden knife and become familiar with the correct technique.

Another common mistake is not regularly maintaining and cleaning the knife. Neglecting to properly care for your hidden knife can lead to dull blades, rust, or other damage that can affect its performance over time. To prevent these issues and keep your knife in top condition, make sure to clean, oil, and sharpen it regularly.

What are some alternative names or terms for a hidden knife?

A hidden knife can also be referred to as a concealed knife, disguised knife, or a subtly-hidden blade. These terms are often used interchangeably to describe a knife that is specifically designed to be concealed when not in use, offering a discreet and convenient cutting tool for various situations.

Other related terms may include pseudo-knives or fake knives, which are objects designed to appear as a knife but lack a functional blade. These can be used for decorative purposes or as a non-threatening alternative for situations where carrying a traditional knife might not be appropriate or practical.

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