Kootek’s K1 Multifunctional Flashlight Knife is a modular flashlight, which comes complete with an attachable survival knife and/or “attack hammer”. The flashlight itself features an 800 lumen output, with 3 brightness levels and adjustable beam focus. The survival knife is 7.6″ long, and made of aluminum alloy. It is fully usable on its own, or can be attached to the flashlight body. There’s also the “attack hammer”, which is a glass breaker/self-defense tool.