Billed by Bomber & Company as “the world’s smallest tactical pocket knife,” the B-2 Nano Blade is a mini tactical knife inspired by the B-2 Stealth Bomber. With a fully opened length of 80mm and a closed length of 48mm, it definitely lives up to its “discrete concealability” premise and is even small enough to fit in the coin / Zippo pocket of your jeans. The 440C stainless steel pocket knife features a hole on the end for a lanyard or clip, but more importantly, has a split blade that features both serrated teeth and a precision sharp edge. It opens packages. It cuts leather. It saws wood. It can even tighten the screws on your glasses when you inevitably have to do that. Like everything else from Bomber & Company, the B-2 Nano Blade tactical pocket knife is backed by a lifetime warranty from the manufacturer.