Tools and weapons that cut; razors; swords; lasers; plasma.
It’s time to slice and dice! Take a cutting-edge look at the most amazing blades in the world, from the legendary sword of the samurai warrior with an edge sharp enough to sever a man’s arm in a single swipe, to industrial shredder blades capable of gobbling anything from a sofa to a fridge, to the precision slicing power of lasers and plasma.
What is the world's sharpest? For severing through an enemy warrior, it's the Katana blade of the Samurai. We'll craft one of these swords from scratch to reveal the secret of its legendary cutting ability. Then we'll put it to the test. We'll also visit Cutco Cutlery, where professionals there hone steel to an edge they claim is the sharpest for chopping food in your kitchen.