By South Summit Team. Updated September 12, 2026. Every pick was in stock at the listed price when this was updated.
"Hidden knife" covers two very different products in this store: pen knives, a real blade inside a working-looking pen body at $54 to $58, and comb knives, a 3-inch blade inside a plastic comb or brush handle at $4 to $5. Both sell; the comb knives sell by the dozen. This ranks the 32 in stock by orders and explains what each is. Browse the hidden knives collection.
Quick comparison
| # | Pick | Price | Mechanism / material | Blade / weight | Overall | Best for |
|---|---|---|---|---|---|---|
| 1 | Stealth Script Concealed Pen Knife Display - Assorted Colors | $57.99 | ||||
| 2 | Executive Ghost Covert Pen Knife - Black and Silver | $57.99 | ||||
| 3 | Patriot's Quiet Edge Covert Pen Knife - USA Flag | $53.99 | 5.5 in | keychain and gift buyers | ||
| 4 | Candy Covert Hidden Fixed Blade Comb Knife - Pink Sprinkles | $3.99 | 6.5 in | low-profile pocket carry, a first purchase or a spare | ||
| 5 | Candy Concealment Hidden Fixed Blade Knife - Turquoise Sprinkles | $3.99 | 6.5 in | low-profile pocket carry, a first purchase or a spare | ||
| 6 | Ghost Ring Covert Comb Knife - Matte Black | $3.99 | 1.16 oz | 7.5 in | everyday carry with a clip, a first purchase or a spare | |
| 7 | Wildcat Incognito Hidden Comb Knife - Leopard Print | $3.99 | 6.5 in | low-profile pocket carry, a first purchase or a spare | ||
| 8 | Reaper's Edge Concealed Comb Karambit Knife - Black Skull | $3.99 | 1.16 oz | 7.5 in | everyday carry with a clip, a first purchase or a spare | |
| 9 | Ghost Comb Karambit Concealment Knife - Carbon Fiber | $3.99 | 1.16 oz | 7.5 in | everyday carry with a clip, a first purchase or a spare | |
| 10 | Carbon-Weave Stealth Grooming Comb Knife - Carbon Fiber Print | $3.99 | 6.5 in | low-profile pocket carry, a first purchase or a spare |
How we ranked these
Every product on southsummit.com carries a 30-day order score recalculated daily from real orders across our store network. The picks below are the in-stock items with the highest score on the day of the last update, in that order, and each one is checked against its listed specifications. This is not a hands-on torture test and nothing here is sponsored; it is what buyers chose with their own money, explained.
The best hidden knives
1. Stealth Script Concealed Pen Knife Display - Assorted Colors
The best-selling hidden knife: a covert pen knife in assorted colors, about $58.
| Price | about $57.99 |
|---|
2. Executive Ghost Covert Pen Knife - Black and Silver
A black-and-silver executive pen knife, about $58.
| Price | about $57.99 |
|---|
3. Patriot's Quiet Edge Covert Pen Knife - USA Flag
A flag-finish pen knife with a 2.25-inch blade, 5.5 inches overall, about $54.
At 2.25-inch blade, 5.5 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.
| Price | about $53.99 |
|---|---|
| Blade Length | 2.25 in |
| Overall Length | 5.5 in |
Best for: keychain and gift buyers.
4. Candy Covert Hidden Fixed Blade Comb Knife - Pink Sprinkles
A 3.5-inch fixed blade in a pink sprinkle comb handle, about $5. The best-selling comb knife.
At 3.5-inch blade, 6.5 inches overall it sits in the compact class, which makes it a low-profile pocket knife: a real blade in the least handle.
| Price | about $3.99 |
|---|---|
| Blade Length | 3.5 in |
| Overall Length | 6.5 in |
Best for: low-profile pocket carry, a first purchase or a spare.
5. Candy Concealment Hidden Fixed Blade Knife - Turquoise Sprinkles
The turquoise version, about $5.
At 3.5-inch blade, 6.5 inches overall it sits in the compact class, which makes it a low-profile pocket knife: a real blade in the least handle.
| Price | about $3.99 |
|---|---|
| Blade Length | 3.5 in |
| Overall Length | 6.5 in |
Best for: low-profile pocket carry, a first purchase or a spare.
6. Ghost Ring Covert Comb Knife - Matte Black
A 3-inch comb knife with a ring, 1.2 oz, about $4.
At 3-inch blade, 7.5 inches overall, 1.16 ounces it sits in the mid-size class, which makes it the everyday-carry class: enough blade to cut, small enough to forget in a pocket.
| Price | about $3.99 |
|---|---|
| Blade Length | 3 in |
| Overall Length | 7.5 in |
| Weight | 1.16 oz |
Best for: everyday carry with a clip, a first purchase or a spare.
7. Wildcat Incognito Hidden Comb Knife - Leopard Print
Leopard-print comb knife, about $5.
At 3-inch blade, 6.5 inches overall it sits in the compact class, which makes it a low-profile pocket knife: a real blade in the least handle.
| Price | about $3.99 |
|---|---|
| Blade Length | 3 in |
| Overall Length | 6.5 in |
Best for: low-profile pocket carry, a first purchase or a spare.
8. Reaper's Edge Concealed Comb Karambit Knife - Black Skull
A comb handle with a curved karambit-style blade, about $5.
At 3-inch blade, 7.5 inches overall, 1.16 ounces it sits in the mid-size class, which makes it the everyday-carry class: enough blade to cut, small enough to forget in a pocket.
| Price | about $3.99 |
|---|---|
| Blade Length | 3 in |
| Overall Length | 7.5 in |
| Weight | 1.16 oz |
Best for: everyday carry with a clip, a first purchase or a spare.
9. Ghost Comb Karambit Concealment Knife - Carbon Fiber
Carbon-pattern comb karambit, about $5.
At 3-inch blade, 7.5 inches overall, 1.16 ounces it sits in the mid-size class, which makes it the everyday-carry class: enough blade to cut, small enough to forget in a pocket.
| Price | about $3.99 |
|---|---|
| Blade Length | 3 in |
| Overall Length | 7.5 in |
| Weight | 1.16 oz |
Best for: everyday carry with a clip, a first purchase or a spare.
10. Carbon-Weave Stealth Grooming Comb Knife - Carbon Fiber Print
A straight-blade comb knife in carbon pattern, about $5.
At 3-inch blade, 6.5 inches overall it sits in the compact class, which makes it a low-profile pocket knife: a real blade in the least handle.
| Price | about $3.99 |
|---|---|
| Blade Length | 3 in |
| Overall Length | 6.5 in |
Best for: low-profile pocket carry, a first purchase or a spare.
Pen knives
The pen body unscrews or pulls apart to expose a short fixed blade, usually 2 to 2.5 inches, in a handle the size of a marker. They are bought as novelties and as a blade that lives in a bag pocket; the price reflects metal construction and a working cap. The three above are the only pen knives in stock and the Stealth Script sells most because of the assorted colors.
Comb and brush knives
A plastic comb or brush handle with a 3 to 3.5 inch blade that slides out. At $4 to $5 they are the cheapest fixed blades in the store and the most-ordered items in the category; the sprinkle and leopard finishes sell as gifts. The blade is thin stamped steel; treat them as novelties with an edge, not as working knives.
Before you order
Concealed and disguised knives are restricted by name in a number of states and cities, separately from ordinary knives, and pen knives are prohibited in airline carry-on bags. This page is not legal advice; check your state's and city's rules before ordering. For knives designed to be carried discreetly but not disguised, see best knives for concealed carry.
Frequently asked questions
What is the best hidden knife?
By orders, the Stealth Script pen knife; for a $5 novelty, the Candy Covert comb knife.
Are comb knives real knives?
They have a real steel blade, thin and short. They are novelty items with an edge, not tools.
Are pen knives allowed on planes?
No. Disguised blades are prohibited in carry-on bags.
Prices are South Summit prices at the time of writing and change with stock. Rules for carrying and owning these items differ by state and city; check your local rules before ordering.