Primarily intended for the survivalist as well as the modern day DIY handyman, the Leatherman Signal is a venerable multi-tool that has the pliers as its base structure. Integrated into the base pliers are 18 different tools including a one-handed blade, a ferrocerium rod fire starter, an emergency whistle, a diamond sharpener, and a hammer among others. Measuring only 4.5 inches when fully closed, the Leatherman Signal won’t be a hassle being slipped into your pocket. It feels light on the hands, too at only 7.5 ounces while still retaining its heavy duty construction. Don’t go outdoors without the Signal in your pocket.