A tool designed to be hidden until it's needed is called a hidden knife. There are several sizes and shapes for hidden knives. Usually, they are employed as a last option for self-defense. For the blade to be a useful self defense weapon, it must be exposed. These knives can be strapped onto clothing, similar to those seen on military uniforms, or worn covertly on the body (usually tucked into one's underwear). To conceal their actual function, they are frequently shaped like pens or hairbrushes; some even resemble cell phones! 

Both men and women carry these blades, though more women do so as covert weapons for security reasons. Depending on how big the weapon is intended to be, concealed knife blade sizes vary. Smaller blades (1-2 inches) are usually employed in discrete circumstances such as self-protection. Knives with longer (3–4 inch) blades are better suited for military applications, where they are occasionally used as tools rather than just weapons. 

Depending on its intended use, a concealed knife blade can have one or both sides sharpened. Typically, they range in length from 2.5 to 4 inches. While some of these knives have intricate patterns, their edges are typically not serrated. It's critical that the entire blade be visible in order to deal as much damage as possible to an unwary victim.

Key Reasons of Carrying a Hidden Knife

A tool with hundreds of benefits for self-defense is the hidden knife. Since the blades on these knives are more akin to daggers, they can be streamlined and kept hidden in a sheath. They work well for folks who must always have a knife on them but don't want to carry it around all the time. They're also ideal for fighting and throwing! By taking off the sheath, you can toss these knives easily at a distance and hurl them toward your opponent. These knives also have spikes on their handles, which improve grip.


  • No One Will Can See the Knife in Your Sleeve

These knives are incredibly practical tools, particularly for larger individuals. Sometimes it's easier to slip them into a restaurant or bar by hiding them in small places like your sleeves. This allows one to approach and use that extra touch for violence without being detected. 

  • Keep Your Fingers Protected

If something goes wrong when using the knife, you can prevent yourself from stabbing yourself by keeping your finger off of it. You can move around various objects with ease and safety by flipping the hidden blade from side to side without having to worry about stabbing yourself or anyone else. This helps ensure that you don't cut or stab yourself by accident when using the knife to cut something or make an incision.

  • You can Hide the Knife in a Pocket

Since you always carry your primary weapon, it makes sense to keep a few additional tools you might need for an elderly person hidden on your person. Put everything you need in your pocket or another discreet place where no one can see it if you're just carrying the bare minimum of items. It's still effective, but less visible than a gun or even a phone in the same spot.

  • You Can Evade Police and Avoid Jail Time

Although a hidden blade can be used to avoid detection by law enforcement, its primary purpose is to help oneself avoid trouble in the first place. It may be a hidden lipstick knife that appears harmless and serves a purpose.  


For example, you can easily take out your concealed knife and flip it open without having to say anything if you're being investigated for a crime you've committed and the police are pursuing you. Until someone witnesses their partner being stabbed, they will never understand what is going on. This is also helpful for escaping those who are attempting to harm or stop you.

  • Weapon With You at All Times and No One Will be Any Wiser

Even though many countries do not allow you to purchase a gun or a much larger weapon, it is still a great idea to always have something small and light that you can carry with you. Numerous pocket knives are available that fit neatly into your sleeves or pockets. Nobody will notice if you're carrying something with you in most situations.

  • You Don't Have to Worry About State Regulations

Police officers frequently enforce gun laws and the use of firearms, particularly when they have reason to believe that an individual carrying a gun or knife has been implicated in a crime. Before carrying certain items, it's simple to get more information from local government representatives if you're unsure whether any laws apply to your circumstances.  It's best to conduct research before entering a dangerous situation or being caught because local laws and customs differ.

  • Easy to Use and Carry

By keeping a concealed weapon on you, you can feel at ease and not worry about drawing attention to yourself. One of the safest ways to defend yourself when you're around other people is to conceal a hidden pen knife or other sharp objects that you could use as a weapon. If you carry a weapon, nobody can identify what kind of gun or knife it is unless you wear specialized gear that makes it obvious whether someone is carrying a weapon simply by looking at them. 

You won't have to worry about getting caught in a situation where people are wary of you, and nobody will ever suspect that you're hiding a weapon. It's easier to defend yourself when you're not worried about anyone else knowing what's going on.

  • Avoid Carrying Other Weapons

You don't have to worry about breaking the law or running afoul of others; you can keep them private. Although many countries' laws support the right to bear arms, not everyone can handle the hassle of it all. Some people prefer not to draw their weapons in order to avoid upsetting other people or starting a fight. 

Having legal items with you is the easiest way to stay out of those situations. Steer clear of carrying knives in areas with strong gun laws if you plan to defend yourself.  It is best to avoid hiding a hidden knife necklace when that law is in effect because doing so could result in fines. Rather, pair the concealed weapon with something like a gun.


  • You Can Own them Without Anyone Knowing

Guns, knives, and other weapons that could be used in force or violence are prohibited in many parts of the world. It is illegal or problematic in certain nations for one person to carry a weapon without the local government's approval.  Consider purchasing a concealed weapon from outside the country if you live in a place where it is illegal to own one.

  • Fade Away Your Enemies

You won't have to worry about getting into trouble if you handle the situation. You don't have to worry about someone stopping you from doing something when you have a knife. You won't have to worry about someone trying to take your weapon away or stopping you in your tracks. Rather, solve the current issue and continue living your life normally.  An armed person will be impossible to stop, especially if they are attacked unexpectedly.

How to Maintain a Self Defense Hidden Knife?

Because hidden knives are more versatile and have fewer restrictions than standard knives, it's critical to understand how to use them safely. Furthermore, concealed knives typically cost less than regular knives and offer additional benefits over them, such as convenience and dependability. Here are some guidelines for the responsible use of concealable knives: 

Properly store your knife: To ensure that no one else can unexpectedly take it from you, always keep your concealed blade with the handle facing inward toward your body. To further prevent unintentional harm to oneself or others, always ensure that the tip of your blade is kept within its sheath.

Get comfortable using your concealed blade: It is much simpler to be prepared for any situation when you have practiced using your hidden knife beforehand. It's also critical that you allot enough "conditioning" time to become accustomed to the feel of the knife's sheath and draw. In this manner, when the time comes, you will be more acquainted with how the entire weapon will feel and function in your hands.