Recently we spoke elaborately on diving knives and especially titanium diving knives that excel in many situations. Today I want to recommend you a beautiful tool for your diving experience that is quite multifunctional and handy.It is a perfect accessory for any kind of underwater sea emergency situation.

This knife has a full length of 9.5 inches, with a 5-inch, 1-piece blade that is made from titanium, and a sturdy and sleek tang. With its nice serrated top surface you can cut through many tough materials. The bottom part has a main blade with straight edge along with a decent line cutter.

One of the most important characteristics is that you do not need to wonder how to wipe the scum from the junction between handle and blade that is usually difficult to reach. This knife you can disassembly completely with no extra efforts.

Quick-release sheath and straps allow to fit it perfectly on your body, without contact with regulator or tank.

Diving Knife

Diving knife can be made of different materials, and can vary in size or shape. Yet you have to remember that your knife is not a weapon but only a tool. Let us list a few tools that will help you to make a good decision on what type of knife will be the best option for your needs.

As far as size is concerned, large knives are defined as having a blade longer than five inches. There is a common misconception that the large the knife the better. Yet it can either cut you or your buoyancy control equipment. And be an awkward burden in a situation that you want to get rid of any unnecessary weight.

Medium sized knives have blades of four-five inches and are the most practical ones. They can be easily mounted on the BC, leg or arm. You can grip this knife securely and manage it as a handy tool underwater. If you buy a mini knife with two or three inches of blade, make sure that its handle is longer than three inches. Otherwise it can harm your hands or gloves if you wear them underwater.

The shape of a diving knife varies, too. It can have straight edges that is useful  for cutting plastic. This includes monofilament fishing line, as well as nylon rope. Diving knives with serrated edges are useful in cutting kelp and natural fiber rope. In this kind of knives serrations should run along almost whole length of the blade, so that it can produce a decent sawing motion. Many knives have both edges, staight and serrated, so you can use them in almost any situation.

Sometimes they have sharp tips that can be used for spearfishing, and blunt tips for prying, hacking, chiseling or digging. Sharp tips can potentially harm your BC, so you can use a blunt tip instead. For cutting small lines you will need a knife with a line cutting notch.

Many diving knives are made with 300- or 400-series stainless steel alloys. Due to high carbon content many stainless steel knives show signs of rust. Thus they require some maintenance: rinse your knife well with fresh water and dry outside of sheath. Then you coat it with a light layer of silicone or oil.

As far as 300-series or 400-series allow, the lower the number, the more corrosion resistant this diving knife becomes. Yet it is less capable of keeping a sharp edge. You spend less time on its maintenance but need to sharpen it after two or three dives.

Titanium knives are rustproof  and corrosion resistant. They do not contain any carbon. Thus you do not need any sharpening or maintenance for a long period of time.

There are a lot of manufacturers of diving knives, such as Aeris, Aquatec, Akona, Armor, Deep Outdoors, Cressi, Cutterfish, Deep See, Dive Rite, Innovative, Mares, Max., Oceanic, OMS, Promate, Zeagle and more…

Spyderco SALT Dive Knife

Once you have your decision about size, general style and cost of a knife for scuba diving, you need to consider other important factors. As far as cost is concerned, you choose between expensive titanium diving knife and its steel cousin which is half the price of former. The titanium one does not rust, and steel has this unhappy tendency. Titanium diving knife is also lighter and stronger, even though that is not necessarily important for a diver.

Well, if you are a seasoned diving fan or plan to practice this kind of sport for years to come, then your choice number one is a titanium knife, an investment that is well worth your money and a source of your pride when other scuba divers in your boat have measly old rusty steel dive knives. Of course, for once in a year occasion the material of your knife is not much of an importance.

Consider choosing a good sheath for your knife, otherwise it will fall out during your first or second dive. Even if you had a gold one with gems, if you lose it, there is no use, whatsoever. Make sure there is no way your knife slips out of the sheath. It is great if it clips in flush, and you also need a simple way to put it back when you are unable to see well underwater.
Then what edges does a good diving knife have? Usually it is a standard smooth blade, a serrated blade that is able to cut through things without applying much downward pressure, and a net cutter. If you have to cut strong materials, consider buying some trauma shears.
There are different kinds of attachments for knives, some have only straps, and others have everything imaginable. If you are not sure what you need, get a knife with many options like a T-Rex knife from Lumb Brothers.
Always check whether it is comfortable for you to reach your diving knife without straining yourself. Some difficult zones include your leg and one of your arms that could be snagged with no way to get the knife when you utterly need it. So one of the best places to put your dive knife is on your BCD.
So if you need a great knife for your scuba diving needs, go get a titanium one that has good accessories and is reachable on your body.