Mouseknife Key – key‑sized 3D‑printed utility knife for your keyring

Key‑sized 3D‑printed utility knife that takes standard 51x19 mm 0.65mm thick blades. Designed to live permanently on your keyring so you always have a sharp cutter on you for boxes, tape, labels and small everyday tasks.

The Mouseknife Key is the compact, key‑sized version of the Mouseknife designed to fit perfectly on your keyring, giving you two usable tips per blade in a much smaller, always‑with‑you form factor.
While shorter by 10 mm, it uses blades with 3 locking notches, offering an evem longer tip blade than those of the Classic.
At about the size and weight of a regular key, it disappears in your pocket but is always there when you need to open a package, cut cable ties, slice tape or trim a label.
The 3D‑printed body features an integrated hole for a keyring or carabiner, so you can mount it just like a normal key without extra hardware.
The ergonomic shape allows a surprisingly secure grip for such a small tool, making it a practical everyday carry (EDC) cutter for home, office and on the go.