The Best Dive Knife In 2024: Great Models To Purchase & Guide

Sarah Combs By, Sarah Combs
Updated
BOffer Scuba Diving Knife,Black Tactical Sharp Blade knives
Image credit: Amazon.com

Our Top Picks

1. Best Overall: BOffer Scuba Diving Knife,Black Tactical Sharp Blade knives

If you're looking for the most advanced scuba diving knives,BOffer has a range of military-grade dive knives that are perfect for your next dive. Our knives come with sheaths that fit either leg, arm, or belt and have a 420C steel blade that won't rust, making them a great choice for any diver. Read Review

2. Best Bang For The Buck: Promate Sharp Tip Titanium Dive Knife - KF593, Yellow/Black, Sharp Tip

The Promate KF593, titanium scuba diving knife is a lightweight package with a focus on ease of use. The titanium blade is sharp and corrosion resistant, meaning it can handle just about anything you throw at it. This particular knife comes in fluorescent yellow/black, so you won't lose it in the depths! Read Review

3. Best Sharp: Bahia Dive Supply Stainless Steel Diving Snorkeling Safety Knife

The Bahia Dive Supply Stainless Steel Dive Snorkel Safety Knife is easy to use and durable. The 420 high-carbon stainless steel blade is easy to sharpen and the sheath must be rinsed, towel dried and coated with silicon after each dive. . Read Review

4. Best Portable: Promate Sharp Tip Titanium Diving Knife (5 Blade), Blue

The Promate Sharp Tip Titanium Diving Knife (5 Blade) features a titanium blade and hammer on handle bottom that is corrosion resistant and requires little or no maintenance. This fits neatly in your glove compartment or tackle box, allowing you to have a sharp blade for your next trip. Read Review

Dive knives can be as specialized as their users. Some divers are only interested in a knife that is light and easy to handle, while others need something that can easily cut through underwater vegetation. Dive knives of different shapes and sizes are available for various purposes.

Many divers carry their knives on their person at all times, so they need them to be small and lightweight. Others may require a knife designed for cutting through thick kelp or other vegetation while scuba diving. No matter what you intend to do with your dive knife, it is a good idea to have one that meets your needs.

A good dive knife will serve you well whether you plan to use it for recreational scuba diving or professional diving work like spearfishing or underwater repairs. If you’re unsure where to start looking, this article has everything you need to know about the best dive knives on the market today.

We think our BOffer Scuba Diving Knife,Black Tactical Sharp Blade knives with its 420C steel blade  is the best among the top models. If you were dissatisfied with the preceding item, you have the option of selecting Promate Sharp Tip Titanium Dive Knife - KF593, Yellow/Black, Sharp Tip as an alternative. You may relax knowing its quality is also good per our research.

Our Top Picks

  • ★Rugged diving knives,It came sharp and ready to use for snorkeling,fishing,swimming,boating,shallow scuba and cutting fish line,also for combat,self-defense.
  • ★420C stainless steel,overall length:approx 8.5",blade length:approx 4".
  • ★NEVER RUST:420C steel blade,the rust issue that some other users are experiencing is a user error,rather than a bad product.As with any dive knife,the blade should be cleaned,dried,and oiled before putting it away.
  • ★Sheath for leg,arm,belt,BCD.
  • ★1x knife,2 x sheaths that impact-resistant ABS plastic sheath and nylon holster,4 x adjustable 3/4 inch wide straps that 2 x elastic straps and 2 x nylon straps.
  • Titanium blade with Easy grip rubber molded handle with sheath and adjustable straps
  • Package may come with generic box, Shall you have any question, please don't hesitate to contact us.
TOP Choice #3 Bahia Dive Supply Stainless Steel Diving Snorkeling Safety Knife
Our Score:
9.6
Bahia Dive Supply
  • Bright green color for easy visibility! Never spend time searching for dropped knives! You & your dive buddy will be able to quickly see this knife in emergencies.
  • Three types of blade in one! Straight edge for slicing, serrated edge for tearing and a line cutter all in one!
  • 5 inch blade includes a heavy duty handle with a slip resistant rubber grip. Sheath includes quick release locking mechanism for easy access when needed and security when not in use. Maintain locking mechanism with WD40 when needed.
  • Durable 420 high-carbon stainless steel blade is easy to sharpen. Blade and sheath must be rinsed, towel dried and lightly coated with silicon after each dive. Salt water is corrosive to stainless steel.
  • Quick release clips & adjustable 19 inch straps for lower leg, easy to set up and remove. Straps connect to back side of sheath through 0.75 inch loops.
  • Quick release and adjustable straps
  • Shipping&Handling and tax may occur depending on promotion and shipping area, please check price during check-out
  • Easy disassembling for cleaning and maintenance
  • Requires little or no maintenance
  • Titanium blade and hammer on handle bottom
  • Single button sheath lock release
  • Includes a serrated edge plus a line cutter
  • FK-910 features a drop point blade, FK-920 features a blunt tip blade
  • 420 Stainless Steel blade
  • Newly designed ergonomic grip with counterweight
  • Includes a serrated edge plus a line cutter
  • Single button sheath lock release
  • Newly designed ergonomic grip with counterweight
  • Easy-to-adjust buckle and strap allow for a comfortable fit
  • 6-4Ti (Ti-6Al-4V) highly corrosion resistant titanium drop point blade
  • Get quick access to a 304 stainless-steel knife during salt water adventures by mounting the Tanu to dive gear; its blunt tip won’t puncture inflatables
  • Purchase the knife on its own or as a kit with the B.C.D. Adaptor Plate to attach on an integrated knife mount or inflator hose
  • Take this multipurpose knife while diving, fishing or paddling and use the line cutter or double edge blade (straight and serrated) for big and small jobs
  • Grab the burly, rubberized handle for a secure grip with a finger stop for added safety, or use it as a tank banger underwater
  • Tethering the knife to gear in case you drop it using the lanyard hole; includes a quick-draining sheath with removable belt clip
  • Quick-adjust sheath straps
  • Lightweight locking sheath with push-button release
  • Serrated edge and large line-cutting notch
  • Corrosion-resistant full-tang Titanium blade
  • Elegantly curved 4-inch cutting edge
  • Solid titanium blade and pommel are 100% corrosion resistant and non-magnetic
  • Large choil and contoured handle make possible a powerful grip on the 5 inch blade
  • The multi-function blade includes a serrated edge for sawing through rope, a conventional edge for making clean slicing cuts, a line-cutting notch, and a bottle opener.
  • A unique locking mechanism on the sheath makes it easy to release the knife with one hand.
  • Driven to constantly innovate and improve the diving experience, SCUBAPRO builds high-quality equipment for the work, sport, and lifestyle of people whose passion is found below the surface.
  • SCUBAPRO’s hard-tempered stainless-steel blade is tough, long lasting, and resists surface oxidation.
  • Grip the knife securely with the large handle, which includes plenty of gripping area and a thumb guard to keep the knife from slipping.

Tips and strategies for selecting the best dive knife on the market

People are always attempting to make the best decisions for themselves and their families. Whether they're shopping for new shoes or a new automobile, knowing which best dive knife to buy on the market might be difficult. Fortunately, this article gives some amazing keyword selection tips and tactics, so you don't have to worry about making a bad option!

Blade Edge & Tip

Diver knives can be purchased with either straight or serrated cutting edges. For cutting through dense materials and sawing, serrated knives work well. Straight edges can be used for more precise cutting.
You can find dive knives with both blunt and sharp tips. The blunt tips of dive knives are very useful for prying or digging. Because you don't want to accidentally poke anything, blunt tips can be useful when working in tight spaces. The cutting edge of sharp tips curves towards the end and has a very long length. They are useful in any circumstance where the horizontal cutting edge is not possible. Tanto blades are also worth mentioning.

Attachment Features

You will have to attach the dive knife to your body in some manner. You can attach the knife to your body with straps, a belt, a lanyard or pocket clip.
Straps are the best way to attach your dive knife. The sheath will have two straps, one at the handle and the one on the blade. For quick access, this will ensure that the sheath is securely attached to your leg.
You can attach the knife to your body via a lanyard, tether or rope. The lanyard can be held by string or rope to ensure it does not sink to the bottom.
A locking mechanism is another feature that may be found on knives. This will ensure the knife stays in its sheath. It is essential as this will protect the knife against accidental fall out of its sheath when diving.

Blade Material

The knife blade will rust easily from saltwater and sand. The knife blade must be capable of withstanding saltwater submersion without becoming rusty. Titanium and stainless steel are the best materials to resist corrosion and rust.
Titanium is more resistant to corrosion and rust than stainless steel. You will need to clean stainless steel after every dive, as saltwater and sand could quickly corrode the blade and make it dull.
Titanium has a higher resistance to corrosion and rust than other metals. Although titanium may be more expensive upfront, the rewards will outweigh it.

Blade Size

Your dive knife will most likely be used underwater so it needs to be easy to open and use. It will be much easier to use a small knife underwater than a larger one.
A dive knife's blade should measure between 3 and 5 inches. A blade that is more than five inches in length can make it difficult or dangerous to use underwater. Blades of 3 to 5 inches are not likely to work underwater.
To be effective and most easy to use, a diving knife blade should not exceed 3 inches in length but must not exceed 5 inches.

Visibility

Diver knives can often come in brightly-colored designs. The knife was not designed to be worn with your swimming trunks, contrary to popular belief. Bright colors can be easily seen if your knife is dropped while you dive. The same rules apply if you are in need of a knife during an emergency.

Foldable Or Fixed

You have two options for the dive knife: foldable and fixed. There are many benefits.
The use of fixed knives is very simple and quick. You can simply remove the fixed diving knife from its sheath and you are ready to go. This is a quick and easy process.
While folding knives can be difficult to open, it is possible to store them more conveniently. Because they are much less likely to be damaged or lost, folding knives can also make diving knives safer.
Both fixed and foldable dive knives can be used effectively and are both sufficient. However, each has its own benefits.

FAQs

Are Knife Straps That Go Around Your Leg Safe To Use?

The knife should be low-profile and flush with the leg. Most experienced divers prefer to place their knife inside the leg, particularly those diving in wrecks and other areas susceptible to entanglement. This will keep the knife in between your legs and prevent it from becoming entangled. You can attach smaller diving knives to your BCD/inflator hose, so you are able to reach them more quickly if they get caught up. Divers often carry more than one knife or cut tool, with one attached to the BCD and one for the inner leg.

Can I Use Dive Knives Against Sharks?

It is crucial that you don't provoke underwater predators like sharks or barracudas when you dive. They won't attack you unless you feel threatened. If they do, they will most likely snap at your face and flee. The water pressure in depth can make your movements slow and clumsy, making it very unlikely that you could use your knife to defend yourself against the lightning-fast attacks of underwater predators. Even if you were able to fight back, it would make matters worse since more predators would be looking for blood. You need to be able to safely dive with sharks. If the situation becomes dangerous, it's time to get out of the water.

Should I Choose A Black Blade For My Dive Knife?

Divers can also be attracted to or scared off by shiny knives. This will usually not cause any problems as your knife will stay in its sheath. If you plan on using your knife frequently, you may want to opt for a dark blade. This will prevent you from being bitten by any underwater predators. A black knife is more difficult to find than shiny metal ones in case a diver drops it.

How Many Knives Should I Carry?

Two knives are a must for experienced divers. In case one or both of them get lost, it is a good idea to have a second knife. One knife should be within reach of you right hand, such as your inflatorhose. The other one should be within reach of your left (such like your BCD waistband or weight belt). You will be able reach the knife you need even if your arm gets caught up. Do not carry too many knives. This can make you feel awkward and could lead to weight gain.

How Do You Care For Dive Knives?

They are strong and will last for many years if they are well maintained. Soak the sheath, strap and knife in cool water after every dive. It will remove any grit, salt or chemicals that could cause damage to the material. Before you store it, dry everything completely. Use a bit of silicone oil to coat the knife. If you've been using the knife a lot, it may be necessary to sharpen it before storage. Sharpening knives is an excellent idea after each dive to ensure they remain sharp for your next diving trip. Keep knives out of reach of children.

What Type Of Dive Knife Should I Use?

Divers can choose from a variety of knives, each with a different purpose. A combination of a regular and serrated knife is best for cutting tough ropes like those used in fishing nets. This knife can also be used to cut thin fishing lines with its line-cutting notch. Consider what type of diving you do before you purchase a second blade. A stiletto knife is useful for spear fishers as it will quickly kill the catch and keep them from being spooked by predators. You can purchase more durable blades that can be used for different tasks, such as sawing and prying.

Conclusion

Choosing the best dive knife for your purposes might be a difficult challenge. It is critical to remember what you want to achieve with the purchase as well as any factors that may influence your selection. 
Whether it's as basic as reading reviews before purchasing or inspecting images of best dive knife on the market from numerous perspectives. When you wish to locate another one, you may also look at the BUBBA 3.5" Pointed Dive Knife with Non-Slip Grip Handle. Now, let’s pick one for you!


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About Sarah Combs

Sarah Combs
Sarah Combs is a visual editor who loves to travel and hike. She enjoys taking photographs of her journeys, which help her to remember the beautiful places she's been to. Sarah is grateful for the opportunities that she has had to see the world and looks forward to continuing to explore new places in the future. Sarah is the editor of CampfireHQ since 2021 and has written on a variety of topics, from camping, and hiking to other outdoor guides.

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