The world of cutting tools
Many first-time divers are surprised when the first see another diver with a knife. And if it’s large, their imagination begins to take flight, as they begin to picture huge underwater battles. But no: a dive knife is never a weapon to attack marine life. It is used only in special cases, such as for defense or to solve problems related to sticky marine life like algae, or fishing lines and nets, among other things. Always be responsible in the use of a knife. A dive knife must have a protective sheath to prevent accidents.
A knife has a number of characteristics we must weigh up before making a purchase. The first is size. Here, a wide variety of sizes are available, although we would recommend a small or medium-sized knife that is easy to put away in your pocket. Some have a mount that allows you to keep it in your diving jacket. And if you decide to carry it on the side of your calf, with a strap mount, it should not be too large or bothersome when bending your leg to flap your fins.
The next factor is composition: either stainless steel or titanium. What’s the big difference? Steel will ultimately rust, and will require very frequent cleaning and greasing for the sake of prevention, while titanium will almost always be rust-resistant because it contains no carbon, unlike stainless steel. At the same time, a steel knife is easier to sharpen and will cut more than a titanium knife over time. Weight is also a consideration, as titanium is only half the weight of steel.
The blade is also important in a knife. It can be smooth or serrated, or both, as in the photo above. These models are more highly recommended due to their versatility. A knife may also have a tip or not. If you don’t have much experience in handling knives, we always recommend buying one without a tip, to avoid injuring yourself while diving.
Remember that here, size does not count. But a knife should have a good blade, a good protective sheath that’s easy to use and, lastly, a comfortable handle with the best possible grip.
Did you find this information useful or interesting?
Share it on social networks to help others!