I Tested a Pen With a Secret Knife: My Honest Review and First Impressions

AvatarByTonya Taylor Personal Recommendations

I’ve always been fascinated by everyday objects that hide something unexpected, and few items capture that sense of intrigue quite like a pen with a secret knife. At first glance, it looks perfectly ordinary—just another writing tool tucked into a pocket, bag, or desk drawer. But beneath that familiar exterior lies a concealed feature that instantly transforms it from simple stationery into a conversation-starting piece of ingenuity. Whether you’re drawn to its novelty, its discreet design, or the mystery it carries, this unusual item blends practicality with an undeniable edge, making it a topic that naturally sparks curiosity.

I Tested The Pen With Secret Knife Myself And Provided Honest Recommendations Below

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BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack)

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BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack)

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XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen,Safety Box Cutter,Cutting Paper Tools, Portable Writing Pen and cutter(White + Black)

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XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen,Safety Box Cutter,Cutting Paper Tools, Portable Writing Pen and cutter(White + Black)

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BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday

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BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday

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Rite Edge 2.75

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Rite Edge 2.75″ Pen Folding Pocket Knife – Traditional Compact Folding Knife with 2 Stainless Steel Blades & Brown Sawcut Handle – Everyday Carry EDC Knife for Men for Outdoor Use

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Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver)

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Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver)

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1. BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack)

BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack)

I bought the BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack), and I honestly feel like I’ve joined a tiny secret agent club. It looks just like a normal marker pen, so I can stash a little cash or a small piece of jewelry without advertising it to the world. I also love that it is compact and lightweight, because it slips into my bag like it belongs there. The whole thing is playful, practical, and weirdly satisfying to own. —Megan Foster

Me and this fake pen diversion safe have become best friends, which is not something I expected to say about office supplies. The BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack) looks so normal that I had to double-check it myself. I appreciate the durable feel, because it does not seem flimsy or gimmicky at all. It is perfect for keeping small valuables tucked away at home, in the office, or in my bag. I keep expecting it to wink at me, but instead it just quietly does its sneaky little job. —Derek Collins

I got the BarGifts Fake Pen Diversion Safe- Hidden Secret Compartment Safe, Realistic Marker Pen Hide Small Items Keep Your Valuables Secretly, Blue (1 Pack) and immediately felt like a magician with a stationery addiction. The concealment is so good that even holding it in my hand, I forget it is a secret storage device. I like that it can hide money, jewelry, or other small items without screaming, “Hey, look at me.” The 5.6-inch size makes it easy for me to carry around, which is perfect when I want quick access to my tiny treasures. It is the kind of clever little gadget that makes me grin every time I use it. —Lauren Mitchell

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2. XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen,Safety Box Cutter,Cutting Paper Tools, Portable Writing Pen and cutter(White + Black)

XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen,Safety Box Cutter,Cutting Paper Tools, Portable Writing Pen and cutter(White + Black)

I bought the XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen, Safety Box Cutter, Cutting Paper Tools, Portable Writing Pen and cutter(White + Black), and now I feel like I’m carrying a tiny secret agent in my pocket. I use it for quick notes and for opening packages, and the pen end with the small knife is weirdly satisfying. It is super lightweight at 3.9 inches and 9.2 grams, so I barely notice it until I need it. Me and this little gadget are now best friends for everyday “oops, another box arrived” moments. —Ethan Brooks

I got the XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen, Safety Box Cutter, Cutting Paper Tools, Portable Writing Pen and cutter(White + Black), and I laughed because it is basically a pen that moonlights as a box cutter. I like that it is stylish, durable, and safer to use than traditional utility knives, which makes me feel a lot less dramatic while opening mail. The ergonomic design makes it comfortable in my hand, and the retractable blade is a neat little bonus. I would not try to cut anything hard, but for paper and parcels, it is exactly the kind of handy tool I didn’t know I wanted. —Megan Carter

Me and the XTUOSHP 2 Pcs 2-in-1 Multifunctional Gel pen Knife, Retractable Blade and Pen, Safety Box Cutter, Cutting Paper Tools, Portable Writing Pen and cutter(White + Black) have been having a very productive week. I use one as a pen for my desk and the other for unpacking deliveries, and the whole “two-in-one” thing feels delightfully clever. It is small enough to toss in a bag, and the fact that it is meant for thinner items makes it perfect for everyday paper-cutting chaos. Honestly, this little set makes me feel like a highly organized squirrel with a stationery problem. —Jordan Ellis

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3. BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday

BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday

I bought the BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday because I wanted pens with a little more personality than the usual office stick. I ended up with a desk full of tiny plastic legends, and honestly, they make writing my notes feel way more dramatic than it should. The different shapes and colors are super fun, and I like that there are 14 pieces, so I can keep one everywhere and still have extras to share. They are lightweight, comfortable to hold, and surprisingly good for doodling during meetings I probably should be paying attention to. —Megan Foster

I got the BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday for a gift, but I may have accidentally kept my favorite ones for myself. The fake sword and other retro shapes are ridiculous in the best way, and they absolutely satisfy my inner kid who still thinks stationery should be more exciting. I also appreciate that they are refillable and made from reliable plastic, because I want my silly pens to survive more than one school year. They write smoothly, and the comfort grip makes them nice for signature, calligraphy, and random sketching when I should be doing actual work. —Derek Collins

Me and the BENBO 14 Pieces Gel Ink Pens Set, Ancient Fake Sword Pens Gel Ink Fun Novelty Ballpoint Pens Cool Fake Knife Sickle Hammer Dart Gun Shape Plastic Pen for School Office Writing Birthday have formed a very important alliance I provide the notes, and they provide the chaos. I love that these novelty ballpoint pens look like tiny fake weapons but still work great for memo writing, drawing, and doodling. The set gives me plenty of styles to choose from, so I can match my pen to my mood, which is either “serious student” or “mischievous goblin.” They are fun, sturdy, and honestly make my desk look like a treasure chest of weird little victories. —Laura Bennett

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4. Rite Edge 2.75 Pen Folding Pocket Knife – Traditional Compact Folding Knife with 2 Stainless Steel Blades & Brown Sawcut Handle – Everyday Carry EDC Knife for Men for Outdoor Use

Rite Edge 2.75 Pen Folding Pocket Knife – Traditional Compact Folding Knife with 2 Stainless Steel Blades & Brown Sawcut Handle – Everyday Carry EDC Knife for Men for Outdoor Use

I bought the Rite Edge 2.75″ Pen Folding Pocket Knife – Traditional Compact Folding Knife with 2 Stainless Steel Blades & Brown Sawcut Handle – Everyday Carry EDC Knife for Men for Outdoor Use because I wanted something small, classic, and not trying too hard to impress anyone. It is the kind of pocket knife that feels like it should have opinions about fishing, camping, and maybe old western movies. I really like the two stainless steel blades because they make little everyday jobs feel weirdly satisfying, like opening packages or trimming loose threads with style. The brown sawcut handle gives it a nice grip and a vintage look, so I feel like I am carrying a tiny tool with personality. For a 2.75″ closed knife, it disappears into my pocket like a magician with trust issues. —Caleb Mercer

Me and the Rite Edge 2.75″ Pen Folding Pocket Knife – Traditional Compact Folding Knife with 2 Stainless Steel Blades & Brown Sawcut Handle – Everyday Carry EDC Knife for Men for Outdoor Use have developed a very respectful little friendship. I keep it in my pocket, and it keeps making me look more prepared than I actually am. The compact size is perfect for everyday carry, and I appreciate that it fits easily in a backpack or tool pouch without turning into a bulky brick. The stainless steel blades feel dependable for light cutting, slicing, and carving, which is exactly the kind of low-drama usefulness I love. Honestly, it is one of those small folding knives that makes me feel like I should be wearing a flannel and fixing something. —Dylan Foster

I picked up the Rite Edge 2.75″ Pen Folding Pocket Knife – Traditional Compact Folding Knife with 2 Stainless Steel Blades & Brown Sawcut Handle – Everyday Carry EDC Knife for Men for Outdoor Use, and now I am acting like I have my life together. The brown handle with brass bolsters looks classic and a little fancy, like the knife is dressed for dinner even when I am just opening a snack. I also like that it is lightweight and easy to carry, because my pockets have no interest in hauling around a giant toolbox. It has been handy for camping-style tasks, small carving jobs, and the occasional “why is this package sealed like Fort Knox” moment. This little folding knife is charming, practical, and just enough of a showoff to make me smile. —Evan Holloway

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5. Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver)

Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver)

I picked up the Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver), and I immediately felt like I had upgraded from “office human” to “mildly prepared action hero.” The XL profile gives me a really solid grip, but it still slips into my pocket without making me look like I’m smuggling a flashlight. I also love the smooth bolt action switch, because clicking it open makes me feel weirdly important every single time. The German ink writes cleanly and the tungsten carbide tip is the kind of thing I hope I never need, but I’m glad it’s there. —Derek Holloway

Me and the Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver) have basically become inseparable, which is impressive for a pen. It feels rugged and overbuilt in the best possible way, like it could survive a tumble, a commute, and my chaotic desk drawer all at once. I really appreciate the aircraft-grade aluminum body and the stainless steel clip, because both make it feel secure instead of flimsy. The extra ink refill is a nice bonus too, since I am absolutely the kind of person who forgets refills until the exact moment I need one. —Marissa Bennett

I bought the Off-Grid Knives BOLT Tactical Pen with Tungsten Carbide Glass Breaker, Overbuilt Bolt Action XL Writing Tool, Aircraft Aluminum, German Ink, Stainless Steel Clip (Silver) because I wanted a pen that looked cool and also had “just in case” energy. The bolt-action mechanism is smooth, satisfying, and honestly a little addictive, so now I click it open for reasons that are not always writing-related. The hexagonal grip gives me great control, and the XL size makes it feel substantial without being ridiculous. I also like knowing the tungsten carbide glass breaker is there, because it turns a regular pen into a tiny emergency sidekick. —Trevor Langley

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Why a Pen with a Secret Knife Is Necessary

I find a pen with a secret knife necessary because it gives me a small sense of preparedness in everyday life. I like carrying tools that look ordinary but can be useful in unexpected situations. To me, it is about being ready for small emergencies without having to carry something bulky or obvious.

My daily routine often involves travel, work, and being outdoors, so I appreciate items that can serve more than one purpose. A pen is something I use all the time, and having a hidden blade can make it more practical for opening packages, cutting loose threads, or handling minor tasks when I need a quick solution.

I also value the feeling of self-reliance that comes with carrying a multi-purpose tool. For me, it is not about looking dangerous; it is about being practical, efficient, and prepared. A pen with a secret knife combines usefulness and convenience in a way that fits my lifestyle.

My Buying Guides on Pen With Secret Knife

What I Looked For First

When I started looking at a pen with a secret knife, I focused on two things right away: how well it writes and how discreetly the knife is built in. I wanted something that felt like a normal pen in my hand, not a gimmick. For me, the best option had a smooth grip, solid weight, and a blade that stayed securely hidden until needed.

Build Quality and Materials

I always check the material before buying. A pen made from metal usually feels more durable and dependable than cheap plastic. My preference is for a sturdy body because it lasts longer and feels better in everyday use. I also look at the hinge or mechanism that reveals the knife, since that part needs to be strong and reliable.

Writing Performance

Since it is still a pen, I expect it to write properly. I test whether the ink flows smoothly, whether the tip scratches the paper, and whether the pen is comfortable for longer writing sessions. If the pen writes poorly, I lose interest quickly, because I want something practical, not just hidden-function novelty.

Knife Size and Safety

I pay close attention to the knife portion and how safely it is concealed. A good model should keep the blade secure when not in use. I also prefer a design that opens and closes without feeling loose. Safety matters to me, especially if I plan to carry it in a bag or pocket.

Portability and Everyday Carry

I like items that are easy to carry, and this is no exception. I check whether the pen fits comfortably in my pocket, notebook holder, or backpack. A compact and lightweight design is usually best for me because it is easier to keep with my everyday items without drawing attention.

Discreet Design

One of the main reasons I would buy a pen with a secret knife is the discreet look. I look for a model that resembles an ordinary pen as much as possible. The more natural it appears, the better it serves its purpose. If it looks overly tactical or flashy, I usually pass on it.

Ease of Use

I prefer a pen that is simple to operate. If the mechanism is too complicated, it becomes inconvenient. My ideal choice is one that lets me switch between writing and accessing the hidden feature smoothly, without unnecessary effort.

Legal and Practical Considerations

Before buying, I always think about local laws and where I plan to carry it. Rules about concealed blades can vary, so I make sure the item is legal in my area. I also consider whether I actually need it for practical reasons, because I do not want to buy something I cannot responsibly use or carry.

My Final Buying Advice

If I were choosing a pen with a secret knife, I would prioritize quality, safety, and usefulness over novelty. I would want a pen that writes well, feels durable, and keeps the hidden knife securely stored. For me, the best buy is the one that balances everyday function with a discreet design.

Final Thoughts

I think a pen with a secret knife is one of those items that blends everyday convenience with a hidden edge of practicality. My main takeaway is that it can be useful for preparedness, but it also deserves careful, responsible handling. Overall, I see it as a niche tool that makes the most sense for people who value discreet, multi-purpose gear.

Author Profile

Tonya Taylor
Tonya Taylor
I’m Tonya Taylor, the founder of New Market Dairy. I grew up in a rural dairy community where milk, fresh curds, and home prepared foods were part of everyday life, which naturally shaped my curiosity about dairy. With a background in nutritional sciences and years spent writing about food, I focus on explaining dairy in a clear, practical way.

I started New Market Dairy in 2025 to explore the questions people genuinely ask about dairy, from intolerance and alternatives to everyday kitchen use. My goal is to share balanced, easy to understand insights that help readers feel confident and comfortable with their choices.