CardSharp2: Ultra thin credit-card sized utility knife.
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CardSharp2 Credit Card Sized Folding Knife by Iain Sinclair

Ultra thin credit-card sized utility knife by Iain Sinclair.

CardSharp Credit Card Knife
CardSharp Credit Card Knife image
CardSharp Credit Card Knife image
CardSharp Credit Card Knife image
CardSharp Credit Card Knife image
CardSharp Credit Card Knife image
CardSharp Credit Card Knife image
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Item #3432


The CardSharp2 is an ultra-light and ultra-thin utility knife that fits comfortably into your wallet.

At 2.2mm thin, the 13-gram CardSharp transforms from a credit card sized sheet into a well-balanced knife with a sturdy handle.

The waterproof CardSharp features a nearly 3-inch long blade made from surgical steel, and the polypropylene handle is guaranteed to last a lifetime of unfolding and folding.

A clever locking mechanism prevents accidental cutting or blunting when the CardSharp is closed. Ensure you're always prepared with the CardSharp Credit Card Knife.

Features & specs

  • Dimensions (folded): 3.4" x 2.15" x 0.08"
  • Dimensions (unfolded): 5.75" x 1.5" x 0.375"
  • Blade: 2.5" (65 mm) cutting edge | 2.99" (76mm) total length
  • Weight: 0.45 oz (13 grams)
  • Handle guaranteed for a lifetime of folding and unfolding
  • Thickness of two credit cards (2.2 mm)
  • Surgical steel blade
  • Waterproof
  • Machine washable!
  • Authentic Iain Sinclair model

Your wallet just became infinitely awesomer

The CardSharp is just about the most useful and convenient item we've come across lately.

A knife is a must-have for the prepared adult (unless you've somehow evolved fingernails that are as sharp as steel), but not everyone wants to carry a separate knife or add more bulk to their already rotund keyring. Well, here comes CardSharp to the rescue!

The CardSharp folds down to the size of a credit card, giving you an effective, high-quality, and impressive tool wherever you go.

The Card Sharp Knife unfolds into a useful and handy knife from a sheath the size of a credit card.
The CardSharp is a full-featured utility knife that fits into your wallet.

Always have a knife at the ready

If the Boy Scouts taught us one thing, it's that adults shouldn't wear a uniform designed for boys. If they taught us anything else, it's to always be prepared. Thanks to the CardSharp, you're one step closer to perpetual preparedness.

And even though it folds down to the size of a credit card, the CardSharp is perfectly balanced and features a sturdy handle.

The CardSharp is a high quality folding knife that fits into your wallet.
Easily handle a few more of life's little emergencies thanks to the CardSharp.

A serious blade for serious situations

The CardSharp's blade is made from surgical steel, which is known for its strength, ability to maintain a cutting edge, and corrosion-resistance.

Recently, an independent testing laboratory, CATRA, awarded the Cardsharp VERY GOOD status for sharpness and life.

The Card Sharp's knife blade is made from surgical steel.
The CardSharp features a razor sharp blade made from surgical steel.

Guaranteed to fold and unfold for a lifetime

The polypropylene sheath of the CardSharp is guaranteed to withstand a lifetime of folding and unfolding.

The material make-up is such that it can be rotated through 180 degrees without any degradation whatsoever. So, bust this baby out and show it off to your friends. The CardSharp can handle an infinite number of folds.

The polypropylene handles allow for a lifetime of folding and unfolding.
The CardSharp's polypropylene handle can be folded and unfolded an infinite number of times.

Not a pain in the wallet... literally and figuratively

The CardSharp is engineered to a thickness of only 2.2mm and weighs only 13 grams. Most conventional pocket knives are orders of magnitude thicker and heavier. You can keep the CardSharp in your wallet and you won't even know it's there — until you need it!

Additionally, the CardSharp is affordably priced so that you'll still have something to carry around in your wallet after you've bought one (or six).

The Card Sharp is as thin as two credit cards.
The CardSharp weighs less than half an ounce! You'll hardly notice it in your wallet.

Super-safe when not in use

The CardSharp features a variety of clever safety features.

When closed properly (safety catch turned to reveal the green circle), the blade is closed such that it cannot accidentally cut or blunt. When opened, the blade will be locked (avoiding the blade tremors of low-quality pocket knives) and will not close accidentally.

Finally, it's impossible to lose the CardSharp's sheath because the knife and the sheath are integrated as one piece. Yep, the guys who designed the CardSharp are wicked smart.

The clever safety tab ensures you'll never cut yourself when the knife is folded away.
Numerous safety features ensure the CardSharp cannot accidentally cut when not in use.

Frequently Asked Questions

Question: Is it waterproof?

Answer: Yes! The CardSharp is absent of any hinged parts that can rust. You can even toss this thing in the washing machine without fear of corrosion.

Question: What are the legal implications of owning this type of knife?

Answer: Because the blade is under 3" long, most states do not consider it a concealed or deadly weapon. However, we are not legal authorities. You would need to consult your local statutes for specifics. That being said, we've yet to find a law that has a problem with a knife with a blade under three inches long.

Question: Is it sharp?

Answer: Yes! But don't take our word for it. An independent testing laboratory, CATRA, recently awarded the CardSharp the status of VERY GOOD for sharpness. In our own tests, we found it to be incredibly durable and sharp as we sliced produce, aluminum cans, tennis balls, nylon rope, and more.

Can't live without it?
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