I’m beginning to suspect the folks over at YSMART LONDON have an unhealthy obsession with making things as tiny as possible—without losing functionality. After giving us a tiny flashlight and a ridiculously tiny pen that’s good enough for stabbing zombies and breaking glass (among other things), they’re back with a tiny knife.

Billed as the world’s smallest knife, BITZ is a precision-cutting tool boasting a tungsten blade, magnetic quick-release, and a titanium or brass body. So yeah, it’s a handsome little thing that isn’t just pretty—it’s functional and, well, super portable, since it fits right on your keychain.
The tungsten blade touts surgical-grade sharpness that stays razor-sharp for life, while the magnetic quick-release enables one-handed access in a snap. Tungsten has a Mohs hardness of 9, by the way—just one step below diamond. That said, the blade is replaceable in case it ever needs to be swapped out.
Like YSMART’s other tiny EDCs, BITZ has a keyring-ready design for that easy, forget-it’s-there-until-you-need-it kind of carry. It comes in a choice of grade 5 titanium or solid brass, both tough, premium materials built to age gracefully. In addition to the body, it offers four signature laser-etched grip styles to choose from: Frost, Core, Hive, and Spine.

All told, this little big guy measures just 4.8 cm long, making it one of the smallest—if not the smallest—functional knives ever made. It weighs just 15g in titanium or 23g in brass.
If you’re down, you can secure one from BITZ’s Kickstarter campaign at a discounted price of £49 or more (around US$66, according to Kickstarter). Not going to lie. I am totally enamored by it. I truly do, but the 50 quid for a knife is a bit much in my books but if you have the financial muscle to flex, go ahead. Don’t wait up for me.
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Images: YSMART LONDON.