CRKT Box Key: The 1-Ounce Slip-Joint Built Around Cardboard, Tape, and Tags

A full-size EDC knife makes sense when you regularly need a serious cutting tool. But if most of your daily knife use consists of slicing tape, opening packages, cutting tags, and dealing with cardboard, carrying three inches of blade can feel like bringing too much tool to a small job. The CRKT Box Key Everyday Carry Folding Knife 7118 takes that problem almost literally — instead of shrinking a conventional folder, CRKT built a tiny slip-joint around a 1.24-inch blade in a knife that measures just 3.24 inches overall when open.

The Box Key's blade is tiny even by compact EDC standards, and that limitation is central to its purpose. Opening shipping boxes rarely requires a three-inch blade, and neither does slicing tape, removing a clothing tag, or opening plastic packaging — a short blade provides enough cutting edge without requiring you to carry a conventional folder. The chisel-style blade is 12C27 stainless with a stonewashed finish, and while the steel designation does not guarantee real-world performance on its own, it is a proven, corrosion-friendly choice for light daily cutting.

The specification that matters most may be the weight: one ounce. Pocket knives can become increasingly capable without becoming easier to carry — larger blades, thicker handles, and substantial locks eventually create another object you notice with every movement. The Box Key goes the opposite direction. At two inches closed, it occupies almost no space, and a lanyard hole lets you attach it to your keys. The wide clip doubles as a money clip, offering a second carry option for minimalists.

The mechanism is a slip-joint rather than a locking blade — tuned detent, ball-bearing pivot, a half-stop around 90 degrees, and a full-open stop, per independent coverage. That means it is a non-locking knife and must be treated as one: no cuts that could force the blade toward your fingers. For packages, tape, and tags, that simplicity makes sense; if your work regularly involves harder cuts with substantial pressure, a larger locking folder is the better tool. The stainless handle also means less gripping area than a conventional pocket knife, though extended cutting is not really the Box Key's assignment.

A tiny knife is not useful simply because it is small — it is useful when being small makes you more likely to have it with you when something needs cutting. For office workers, commuters, and minimalists, the Box Key makes that argument persuasively.