The Nautical is not just a knife it's a precision instrument with many parts working together in synchronicity. A marlin-spike is especially useful in marine applications to untie knots but we were surprised to find out how many other uses they have. Use it as an awl, a scribe, for digging, prying, scraping, or ... you get the idea. What you might not see at first glance though is that the liners are crafted from super strong and lightweight titanium and mated to tough G10 handles. The big half serrated blade opens and closes as fast as you can say 'red on right return'.