about a month ago my friend's 100 foot whale watch boat was due for its coast guard inspection. At the last minute while checking the fire system the captain snapped part of the pipe off while opening a valve. there was no tape measure in the engine room and the mate couldn't find one in the wheel house to measure the size valve needed. I remembered I had my leatherman PST on my belt and it had a ruler. We got the measurement, got the part, installed it and got the fire fighting system operable just as the coast guard inspectors came aboard.
Just the other day I used my PST to work free some knots in my spiny dogfish longline. The needle nose pliers work as a makeshift fid or marlinespike to loosen the knot and i can work it out by gripping it with the pliers.