Credit Card Knife – 2.75″ Blade, Wallet-Size, Blade Lock

Most cutting situations aren’t dramatic — they’re a stubborn package, a loose cord, a zip tie that won’t budge. The problem is bulk: traditional knives claim pocket space, and most people don’t carry one at all. The Credit Card Knife fits in a standard wallet slot, weighs 0.1 lbs, and measures 0.13″ thin, so it’s there when the moment arrives without adding anything to your profile until then.

Who This Knife Is For

Travelers who can’t justify a dedicated blade but want a utility option on hand. Commuters who open boxes, cut packaging, and deal with tags on the move. Emergency preparedness builders who treat their wallet as a second kit. People who run lean on carry gear and need tools that earn their place. If you’ve ever reached for a cutting tool and come up empty, this is the gap-filler you’ve been missing.

Is It the Right Fit for You?

Choose It If You Want

• A cutting tool that stores flat in a standard card slot
• Sub-ounce weight that won’t register in your carry
• A secure blade lock for safe deployment and closure
• A backup option for light utility tasks during travel or daily carry

Consider Another Option If You Need

• A fixed or folding blade for demanding or repeated cutting work
• A longer reach or heavier spine for outdoor or survival use
• A multi-tool with pliers, drivers, or additional implements

Credit Card Knife Features and Benefits

• Wallet-Fit Dimensions: At 3.38″ x 2.13″ x 0.13″, the folded profile matches a standard credit card — it disappears into any card slot without stretching the wallet.
• 2.75″ Steel Blade: Sufficient reach for everyday cutting tasks — package seals, cord, tags, and similar light work.
• Blade Lock Mechanism: Secures the blade in the open position during use and locks it closed for safe carry.
• 0.1 lb Total Weight: Effectively zero carry burden — adds nothing measurable to your wallet.
• Disguised Form Factor: Classified as a disguised knife; the folded shape reads as a card, not a blade.
• Black Finish: Low-profile, utilitarian aesthetic consistent with a no-nonsense EDC setup.
• Rapid Deployment: Unfolds quickly without tools or complex manipulation when a cutting edge is needed immediately.

How the Credit Card Knife Compares

Here is how this knife stacks up against two common alternative carry types across the factors that matter most for everyday use.

Care and What’s Included

What’s in the Box

• Credit Card Knife, black finish

Care

Wipe the blade clean and dry after use to prevent corrosion. Test the blade lock periodically to confirm it seats fully in both the open and closed positions. Store away from children.

Legal Notes

Disguised knives are legal to own and carry in many U.S. states, but some states, municipalities, and venues impose restrictions on blade length, knife type, or concealed carry. Verify your local regulations before carrying the Credit Card Knife in public.

Credit Card Knife: Frequently Asked Questions

How thin is the Credit Card Knife when folded?

The Credit Card Knife measures 0.13″ thick when closed — thin enough to slide into a standard card slot alongside other cards without creating noticeable bulk. Its full folded footprint is 3.38″ x 2.13″, matching the dimensions of a typical credit card.

What is the blade length on the Credit Card Knife?

The blade is 2.75″ long. That’s adequate reach for the tasks this knife is built for — opening packages, cutting cord, trimming tags, and similar light utility work. It’s not designed for sustained or heavy-duty cutting applications.

Does this knife have a blade lock?

Yes. A blade lock mechanism holds the blade securely in the open position during use, reducing the risk of accidental closure. It also locks the blade closed for safe wallet carry. Check that the lock engages fully before each use.

Is the Credit Card Knife legal to carry where I live?

Knife carry laws vary significantly by state, city, and venue — particularly for disguised knives. While this style is permitted in many jurisdictions, restrictions on blade length, carry method, and knife classification differ widely. Check your local statutes before carrying this knife in public or while traveling.

Add This Knife to Your Everyday Carry

At 0.1 lbs and credit-card dimensions, the tradeoff for carrying a cutting tool has never been lower. Select your quantity and add to cart — it fits where nothing else will.