Iain Sinclair’s CardSharp2 is a folding, surgical grade knife that looks just like a credit card, but can be unfolded in seconds, and you can pick one up for $2.12 shipped, today only, originally $29.99. Measuring a svelte 2.2mm thick, the knife itself is basically attached to a hinge that swings out, with the “card” portion transforming into the knife’s handle. A locking mechanism is included to protect you from the blade and a protective sheath to protect the blade from you. Product page. Continue reading for a two videos, including a cutting demonstration and additional information
This 007-inspired tool was originally designed as a lightweight surgical knife that anyone could easily transport and safely dispose of, mainly by medical professionals, without needing wasteful containers. Its unique surgical blade technology features an extra long 65mm cutting edge that ensures longer lasting sharpness – a conventional utility knife blade edge is only 25mm long. To test it, simply cut through a tennis ball or two inch foam which is more difficult using a normal carton knife. More information.