Safety Technology Credit Card Foldable Knife – 2.75-Inch Blade, Blade-Lock, 440 Steel, Wallet-Size, 3.38″ x 2.13″ Folded, 0.1 lbs, Discreet Everyday Carry

SKU: ST-CCKNIFE
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$4.95

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A full-function folding knife that stores flat in your wallet. The blade stays locked inside a credit-card-size housing until you need it — then pops out and folds into a usable pocket knife in seconds.

  • Fits standard wallet slots at 3.38″ x 2.13″ and just 0.13″ thick when folded
  • 2.75-inch surgically sharp steel blade with blade-lock safety
  • 440 stainless steel construction — durable, rust-resistant, holds an edge
  • No tools or assembly required — pop the blade-lock and fold into position
  • Weighs just 0.1 lbs — lighter than most keys

A Knife That Travels in Your Wallet

The Credit Card Foldable Knife stores flat inside the same slot as a standard card. When unfolded, it becomes a functional pocket knife with a 2.75-inch blade. The blade-lock keeps everything contained and secure until you deliberately release it — no accidental deployments in a crowded wallet.

At 0.1 lbs and 0.13″ thick, it adds almost nothing to your carry. The knife is made from 440 stainless steel — a practical choice for everyday use that resists corrosion and maintains a working edge without constant maintenance.

Who This Credit Card Knife Is For

Everyday carry users who want a compact backup blade without adding belt clips, sheaths, or extra bulk to their pockets. This fits in a wallet slot next to your cards and stays completely flat until deployed.

Campers, hikers, and travelers who want a utility knife in a format that packs efficiently. Anyone who reaches for a knife regularly for mundane tasks — opening packages, cutting cord, preparing food — and wants something more convenient than digging through a bag.

People who carry minimally and have limited pocket real estate. The credit card format is specifically useful for those who carry a slim wallet or card case and don’t want to add a separate knife to their kit.

Is This the Right Choice for You?

Choose the Credit Card Knife if you want:

  • A folding knife that stores flat in a standard wallet slot
  • Minimal carry weight — 0.1 lbs adds essentially nothing
  • A reliable blade-lock that prevents accidental deployment
  • An affordable everyday utility knife in a discreet format

Consider something else if you need:

  • A longer blade — at 2.75 inches, this is a utility knife, not a heavy-duty tool
  • One-hand deployment — the fold-out design requires two hands to open
  • A fixed-blade knife for tasks requiring serious cutting force

How the Blade-Lock System Works

In storage position, the blade sits flush inside the card housing with a blade-lock holding it in place. To deploy, press the blade-lock release, then fold the blade out along its hinge into the knife position. The handle forms naturally when the card folds, giving you a functional grip. The process takes a few seconds and is deliberate — not a one-handed quick-draw, but a secure and controlled deployment.

The 440 stainless steel blade is surgically sharp out of the package. The 2.75-inch length handles most everyday cutting tasks — opening boxes, cutting rope, food prep, breaking down packaging. It’s not a survival knife, but it covers the practical range of tasks most people actually use a pocket knife for.

The overall dimensions when folded — 3.38″ x 2.13″ x 0.13″ — are close enough to a standard credit card that it fits in a wallet card slot without stretching or bulging the wallet. The 0.1 lb weight is lighter than a set of car keys.

Quick Comparison: How Does the Credit Card Knife Stack Up?

Feature Credit Card Knife Standard Folding Knife Fixed Blade Knife Multi-Tool
Carry Format ✓ Wallet slot Pocket clip or pouch Belt sheath Pocket or belt clip
Weight ✓ 0.1 lbs 0.2–0.5 lbs typical 0.3–1 lb typical 0.5–1+ lbs
Blade Length 2.75 inches 2.5–4 inches ✓ 3–6+ inches 2–3 inches
One-Hand Deploy No ✓ Most models ✓ Yes Some models
Discreet Storage ✓ Wallet-size Moderate Visible sheath Moderate
Best For Minimal EDC carry General EDC Heavy-duty tasks Multi-function utility

Practical Details

Dimensions folded: 3.38″ x 2.13″ x 0.13″. Blade length: 2.75 inches. Blade material: 440 stainless steel. Weight: 0.1 lbs. Safety: blade-lock. Color: black. No sheath or carrying case included — designed to carry directly in a wallet slot. Check local knife ordinances before carry, as blade length restrictions vary by jurisdiction.

A knife you’ll actually have on you because it doesn’t require any extra space or thought to carry — just a wallet slot you already have.

Frequently Asked Questions

Is this legal to carry in my state or city?

Knife laws vary significantly by location. Most jurisdictions permit folding knives with blades under 3 inches, which this knife meets at 2.75 inches. However, some cities have additional restrictions on concealed carry or specific blade types. It’s your responsibility to verify local laws before carrying any knife. A quick search for “[your city/state] knife carry laws” will give you current regulations.

How sharp is the blade out of the box?

The blade arrives surgically sharp — suitable for clean cuts on paper, packaging, cord, and food without requiring resharpening before use. The 440 stainless steel holds an edge reasonably well for everyday utility tasks. If you use it frequently for heavy cutting work, you’ll want to touch up the edge periodically with a standard knife sharpener compatible with stainless steel blades.

Can this actually fit in a standard wallet?

Yes. At 3.38″ x 2.13″ x 0.13″, it fits in a standard card slot in most bifold wallets and many slim card holders. The 0.13″ thickness is thinner than two stacked standard cards, so it won’t noticeably bulk out most wallets. Very slim minimalist wallets with tight card slots may fit more snugly — measure your slot if you have a particularly form-fitting wallet.

Does the blade lock open once deployed?

The blade-lock secures the blade in the stored position inside the card housing. Once you fold the blade out into the knife configuration, the stability of the folded frame holds it in position. Always handle with care and ensure the blade is fully deployed and stable before using. As with any folding knife, keep fingers clear of the blade path when opening and closing.

ColorBlack
Blade Length2.75 inches
SafetyBlade Lock
Weight0.1 lbs
Dimensions3.38" x 0.13" x 2.13"

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