All About Tanto Blade Knives

There are a couple ways to think about tanto knives. A traditional Japanese Tantō (短刀) is a short sword worn by the samurai of feudal Japan. These swords started out as functional weapons used in the Hein period (794-1185 B.C.). These were designed to primarily be stabbing weapons, but of course the razor fine edge could also slash cut as well.

Ancient Japanese Tanto. Image source.

The tantō is still used today in traditional martial arts, but as swordplay slowly fell out of fashion over the past millennium or so, the traditional utilitarian tantō swords became more ornate and more like artwork. Albeit, highly functional and potentially deadly artwork.

These swords are forged in the hira zukuri method without a ridgeline. This kind of like saying they have a full flat grind, and no blade flats, but I’m oversimplifying and will probably piss some purists off in saying that. They would be justified in being upset, but my guess is that most people reading this article are not seeking information on the traditional tantō, but instead on the modern interpretation of blade shape. Enter, the modern tanto blade shape.

Modern Tanto Knives

The modern tanto is sometimes referred as the American Tanto, or Westernized Tanto. This is a newer blade shape that has become popular with the advent of the modern tactical knife. The tanto blade shape of today is a Japanese inspired knife pattern that reminds you of a traditional tantō or katana of yore.

I have always admired the beautiful tanto blade on the Spyderco Lum Tanto:

The Lum Tanto seems to really capture the essence of this blade shape. Beautiful knife.

The Cold Steel Recon 1 is another example. This is a little less stylized then the Lum Tanto, and a better example of what to typically expect:

In fact, some sources say Cold Steel popularized this blade shape. That wouldn’t surprise me given their martial arts focus and because their catalog is heavy with tanto blades. Rumor has it blueprints for the original tanto design are contained in Lynn Thompson’s will, to be held in trust for exactly 100 years after his passing until it is to be unleashed onto the world not unlike the second coming of Christ.

What is a Tanto Blade Used For?

Just like the original tantō short swords, modern tanto blades have strong tips, which makes them great for piercing cuts. This is where the knife truly excels: stabbing. That strong piercing tip is excellent for penetrating and piercing.

In ancient times a tantō was used for ritual Seppuku.

For this reason tanto blades are found in a lot of tactical knives. They look cool and fit the tactical knife theme, but they could also be used in a martial arts or self defense capacity.

You also find tanto blades in many Every Day Carry (EDC) knives. They look exotic and certainly can do daily carry tasks like open mail, assist in the preparation of food, and take care of odd tasks like cutting rope and other materials.

What are the Benefits of a Tanto Blade?

Tanto blades are great for stabbing things. That reinforced tip is tough to beat as far as durable penetrating power is concerned. If you use your knife to stab things primarily, then the tanto could be a great choice.

Tanto blades also have a secondary point (a “yokote”) that is good for draw cuts, clipping coupons, and that sort of thing. They are great for cutting thin objects like paper against flat surfaces. They can be used to remove stickers and trim tape.

Gratuitous Samurai Photo

You can also use a tanto blade as a quasi chisel. It can be potentially good for certain types of carving and scraping. I don’t use my knives that way, and generally would suggest buying a chisel if you need a chisel, but some people like the versatility.

What are the Disadvantages to a Tanto Blade?

While tanto knives are great for stabbing, they don’t have a curved belly like a drop point or clip point blade, or if they do have a belly, it’s only a gentle one. For this reason they won’t be as good for certain tasks that utilize the belly of a knife. For example, a tanto is not going to be a good knife for skinning game. The lack of belly means it’s going to be almost impossible to follow the contours of an animal as you skin its hide.

The lack of belly can also be frustrating for food preparation. You won’t be able to “rock” the knife back and forth like a chef’s knife, which is going to make chopping much harder to do. It can also be difficult to do things like make crunching cuts through rope. For these reasons I don’t tend to buy many tantos. For what I do with a daily carry knife, I like to have some belly.

Some people love the look and the penetrating power of a tanto bladed knife, or the ability to use them to scrape and chisel, but personally I like a knife with some belly. That’s just me, and there is plenty of room for multiple perspectives.

Are Tanto Blades Hard to Sharpen?

The answer is “sort of”. There are a couple things about tanto blades that can make them more challenging to sharpen.

First of all, while the straight edge of an American tanto may seem easy enough to sharpen, it can be quite difficult to sharpen a straight edge properly. The angle and pressure must be uniform throughout the entire stroke to keep a consistent and straight edge. That said, if you are decent at sharpening you should be able to sharpen a tanto as well. It’s just a little different and may take some practice.

The second reason why tanto blades can be more difficult to sharpen is that you have 2 edges to sharpen. The main edge, and then from the secondary point to the tip. Depending on your method of sharpening it can be awkward to sharpen this small secondary edge. Again, not an impossible task, but that’s what it takes to fully sharpen one of these knives.

What is a Reverse Tanto Blade?

The reverse tanto is a blade shape popularized by Warren Osborn and his iconic Benchmade 940.

Essentially, this is an American Tanto flipped on its head, so the angled tanto tip is on the top side (the spine) of the knife. The edge is a traditional curved edge with some belly. It looks unique, may offer a stronger tip than a drop point, but still gives you some belly.

The 940 and the upgraded 940-1 are both beautiful knives.

Tanto Blades – Final Thoughts

Well, that’s my primer on tanto blades. I hope you found it interesting. If you have a question about tantos, then please feel fee to leave it in the comments section and I’ll flesh out the article further.

To close things out, tanto blades are a mix of old and new. They look cool, are highly functional, and can be potentially a good choice for a daily carry or tactical knife depending on your needs and preferences.

I will say that part of the joy in collecting knives is the variety of designs. I think if you like the look of a tanto knife, then buy one. Use it and enjoy it. I’ve owned a few over the years and they do make things interesting. That’s part of the fun in the hobby of knife collecting.