CRKT Box Key: A 1-Ounce Slip-Joint That Might Be All the Pocket Knife You Need

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 breaking down 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 pocket knife while keeping every capability, CRKT built a tiny slip-joint folder around a 1.24-inch blade. The whole knife measures 3.24 inches open.

That size is the point. Opening shipping boxes rarely requires a three-inch blade, and neither does slicing tape, removing a clothing tag, or cracking plastic packaging. For those jobs, a short blade provides enough cutting edge without forcing you to carry a conventional folder everywhere. CRKT uses a chisel-style blade in 12C27 stainless steel with a stonewashed finish. As with any spec sheet, the steel designation alone does not prove edge retention or sharpness — heat treatment, edge geometry, and what you actually cut decide real-world performance — but 12C27 is a respected budget stainless with a long track record in exactly this kind of utility blade.

The specification that matters most for everyday carry may be the weight: one ounce. Pocket knives can grow more capable without growing easier to carry; larger blades, thicker handles, and heavier locks eventually become another object you notice with every step. The Box Key goes the other way. At two inches closed it occupies almost no space, and a lanyard hole lets you attach it to keys or other gear. The wide pocket clip doubles as a carry option and can even serve as a money clip — whether that works comfortably in practice depends on your pocket, but the idea fits the knife's minimalist philosophy.

The mechanism is more interesting than it looks. Rather than a locking blade, the Box Key uses a slip-joint with a tuned detent, a ball-bearing pivot, a half-stop around 90 degrees, and a full-open stop — details you would normally expect on a much more expensive knife. A tiny knife is not useful simply because it is small; it is useful when being small makes you more likely to have it on you when something needs cutting. That is the entire argument for the Box Key, and it is a good one for anyone whose knife spends more time in a pocket than in a hand.

Compared with a keychain multi-tool, the Box Key trades extra functions for a dedicated cutting edge and a lighter, slimmer profile. Compared with a conventional budget folder, it trades blade length and grip for true pocket-disappearing carry. For box-openers, tag-cutters, and anyone who wants a knife they will actually have with them, that trade is easy to justify.