Credit Card Knife

The CardSharp is a sleek knife that folds up into a credit card, and you can get one for $2.99 shipped, today only, originally $19.99. Measuring in at a svelte 2.2mm thin, this 13-gram contraption transforms from credit card into a surgical-grade knife, complete with sturdy handle, in seconds. This waterproof tool features a nearly 3-inch long blade, and the polypropylene handle is guaranteed to last a lifetime of unfolding and folding. Product page. Continue reading for a two videos, including a cutting demonstration and additional information

This cleverly-designed tool is a must-have for the prepared adult (unless you’ve somehow evolved razor-sharp fingernails made from surgical-grade steel), but not everyone wants to carry a separate knife or add more bulk to their already rotund keyring. Well, here comes CardSharp to the rescue. More information.