SIGNAL™ In the all-new Signal, Leatherman’s traditional functional tools pair with new preparedness features like a shaped diamond coated sharpener for maintaining your straight and serrated blade, fire-starting ferro rod, and an emergency whistle. Weather have you socked in at basecamp? Lightening your load on that day hike? No problem. Stay ready for the expected (and unexpected) no matter where you are with everything you need to stay safe and take your adventure further. Nylon sheath included.