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TrueKatana

Katana

Discover the allure and craftsmanship of the Katana, a symbol of honor and tradition that transcends time. Each Katana on our site is meticulously crafted by skilled artisans, ensuring an authentic piece that embodies the spirit of the samurai. Whether you're an avid collector or a passionate enthusiast, our selection offers something for everyone, from beautifully adorned blades to elegantly simple designs. Imagine holding a piece of history in your hands, feeling the perfect balance and sharp edge that define the Katana's legendary reputation. Our Katanas are not just swords; they are works of art that inspire and captivate. Experience the unmatched quality and exquisite detail of our Katanas, perfect for display, practice, or as a unique gift. Join our community of Katana enthusiasts and bring home a masterpiece that tells a story of courage, precision, and timeless elegance. Explore our collection today and find the perfect Katana that speaks to your soul.

Battle Ready KatanaShirasaya KatanaDemon Slayer Sword
Authentic Japanese Katana Sword Damascus Steel With Red Blade And Scabbard
Authentic Japanese Katana Sword Damascus Steel With Red Blade And Scabbard
4 Reviews
245.00 USD
ON SALE! 40% OFF
Was: 409.00 USD
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel With Silk Thread Scabbard
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel With Silk Thread Scabbard
11 Reviews
227.00 USD
ON SALE! 40% OFF
Was: 379.00 USD
Handmade Japanese Katana Sword High Manganese Steel With Blue Blade
Handmade Japanese Katana Sword High Manganese Steel With Blue Blade
185.00 USD
ON SALE! 40% OFF
Was: 309.00 USD
Handmade Japanese Katana Sword High Manganese Steel With Black Blade
Handmade Japanese Katana Sword High Manganese Steel With Black Blade
216.00 USD
ON SALE! 30% OFF
Was: 309.00 USD
Handmade Real Japanese Samurai Sword Pattern Steel
Handmade Real Japanese Samurai Sword Pattern Steel
286.00 USD
ON SALE! 30% OFF
Was: 409.00 USD
Handmade Full Tang Japanese Samurai Sword With Red Scabbard
Handmade Full Tang Japanese Samurai Sword With Red Scabbard
286.00 USD
ON SALE! 30% OFF
Was: 409.00 USD
Handmade Japanese Katana Sword T10 Carbon Steel Full Tang
Handmade Japanese Katana Sword T10 Carbon Steel Full Tang
1 Reviews
223.00 USD
ON SALE! 30% OFF
Was: 319.00 USD
Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
42 Reviews
277.00 USD
ON SALE! 25% OFF
Was: 369.00 USD
Daisho Set, Katana Sword Set - Katana & Wakizashi Sword High Manganese Steel With Blue Blade
Daisho Set, Katana Sword Set - Katana & Wakizashi Sword High Manganese Steel With Blue Blade
3 Reviews
359.00 USD
ON SALE! 20% OFF
Was: 449.00 USD
High-performance Japanese Samurai Sword Real Hamon
High-performance Japanese Samurai Sword Real Hamon
8 Reviews
327.00 USD
ON SALE! 20% OFF
Was: 409.00 USD
Handmade Japanese Samurai Sword T10 Carbon Steel With Black Saya
Handmade Japanese Samurai Sword T10 Carbon Steel With Black Saya
1 Reviews
311.00 USD
ON SALE! 20% OFF
Was: 389.00 USD
Handmade Japanese Katana Sword T10 Carbon Steel With Black Scabbard
Handmade Japanese Katana Sword T10 Carbon Steel With Black Scabbard
16 Reviews
237.00 USD
ON SALE! 15% OFF
Was: 279.00 USD
Wwii Japanese Army Type 98 Nco Shin-gunto Sword
Wwii Japanese Army Type 98 Nco Shin-gunto Sword
17 Reviews
212.00 USD
ON SALE! 15% OFF
Was: 249.00 USD
Handmade Japanese Samurai Sword With Blue Blade And Scabbard
Handmade Japanese Samurai Sword With Blue Blade And Scabbard
26 Reviews
220.00 USD
ON SALE! 15% OFF
Was: 259.00 USD
Handmade Japanese Katana And Tanto Sword Set With Blue Blade
Handmade Japanese Katana And Tanto Sword Set With Blue Blade
25 Reviews
237.00 USD
ON SALE! 15% OFF
Was: 279.00 USD
Handmade Japanese Samurai Sword 1095 Carbon Steel With Red Blade And Scabbard
Handmade Japanese Samurai Sword 1095 Carbon Steel With Red Blade And Scabbard
11 Reviews
203.00 USD
ON SALE! 15% OFF
Was: 239.00 USD
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon With White Scabbard
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon With White Scabbard
4 Reviews
246.00 USD
ON SALE! 15% OFF
Was: 289.00 USD
Handmade Japanese Shirasaya Katana Sword T10 Carbon Steel Real Hamon Without Tsuba
Handmade Japanese Shirasaya Katana Sword T10 Carbon Steel Real Hamon Without Tsuba
35 Reviews
203.00 USD
ON SALE! 15% OFF
Was: 239.00 USD
Handmade Japanese Sekiro Katana Sword With Red Blade
Handmade Japanese Sekiro Katana Sword With Red Blade
20 Reviews
229.00 USD
ON SALE! 15% OFF
Was: 269.00 USD
Sekiro's Katana Sword, Undead Cut Katana, Shadows Die Twice Purple Sword
Sekiro's Katana Sword, Undead Cut Katana, Shadows Die Twice Purple Sword
4 Reviews
212.00 USD
ON SALE! 15% OFF
Was: 249.00 USD
Handmade Japanese Katana Sword With Crimson Red Blade
Handmade Japanese Katana Sword With Crimson Red Blade
8 Reviews
220.00 USD
ON SALE! 15% OFF
Was: 259.00 USD
Sekiro's Katana Sword, Undead Cut Katana Full Tang With Purple Blade
Sekiro's Katana Sword, Undead Cut Katana Full Tang With Purple Blade
3 Reviews
237.00 USD
ON SALE! 15% OFF
Was: 279.00 USD
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel With Golden Blade
Handmade Japanese Katana Sword T10 Carbon Steel Real Hamon
Handmade Japanese Katana Sword T10 Carbon Steel Real Hamon
3 Reviews
409.00 USD
Handmade Japanese Katana Sword T10 Carbon Steel With Red Scabbard
Handmade Japanese Katana Sword T10 Carbon Steel With Red Scabbard
11 Reviews
249.00 USD
Handmade Japanese Katana Sword T10 Carbon Steel Real Hamon With White Scabbard
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon
Handmade Japanese Katana Sword Damascus Steel With Purple Blade
Handmade Japanese Katana Sword Damascus Steel With Purple Blade
8 Reviews
289.00 USD
Handmade Japanese Katana T10 Carbon Steel With Rose Gold Blade
Handmade Japanese Katana T10 Carbon Steel With Rose Gold Blade
7 Reviews
289.00 USD
Handmade Japanese Katana Sword Damascus Steel Full Tang With Black Scabbard
Handmade Japanese Sword T10 Folded Clay Tempered Steel With Red Scabbard
Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel With Black Scabbard
Handmade Japanese Katana Sword With Blue Blade And Scabbard
Handmade Japanese Katana Sword With Blue Blade And Scabbard
4 Reviews
239.00 USD
Handmade Japanese Katana Sword T10 Carbon Steel With Sunflower Tsuba
Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba
Handmade Japanese Katana Sword Full Tang With Blue Blade
Handmade Japanese Katana Sword Full Tang With Blue Blade
1 Reviews
249.00 USD
Handmade Japanese Samurai Sword Damascus Steel Full Tang
Handmade Japanese Samurai Sword Damascus Steel Full Tang
1 Reviews
279.00 USD
Handmade Japanese Samurai Sword T10 Carbon Steel With Brown Saya
Handmade Japanese Samurai Sword T10 Carbon Steel With Brown Saya
1 Reviews
239.00 USD
Handmade Japanese Katana Sword Damascus Steel With Red Blade
Handmade Japanese Katana Sword Damascus Steel With Red Blade
3 Reviews
269.00 USD

Quick Links

Red Katana
Gold Katana
Blue Katana
White Katana
Black Katana
Brown Katana
T10 Steel Katana
Folded Steel Katana
Manganese Steel Katana
Clay Tempered Katana
Shirasaya Katana
Anime Katana

Customer Reviews

Levi Hansen Northland, New Zealand
Sep 04, 2024 13:55

its a great set r
r
comes from a video game which great fun to play

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Clayton David Witchey Ohio, United States
Sep 01, 2024 18:10

Absolutely beautiful work on my order. Didn't take all that long to be shipped either. Makes a great addition to my basement gaming room. Absolutely thrilled with what I received.

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Jacob Dagenhart North Carolina, United States
Sep 01, 2024 14:49

Piece of art. I made a request for a preference change and they did it for me no hassle. Awesome company and product.

Handmade Japanese Katana And Tanto Sword Set With Blue Blade Handmade Japanese Katana And Tanto Sword Set With Blue Blade
Ryan Hickey Massachusetts, United States
Aug 31, 2024 14:23

The sword is a great addition to the start of my collection.

Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba
Evan Wood Colorado, United States
Aug 25, 2024 14:36

Very pretty extremely well detailed, a perfect wall display

Sekiro's Katana Sword, Undead Cut Katana, Shadows Die Twice Purple Sword Sekiro's Katana Sword, Undead Cut Katana, Shadows Die Twice Purple Sword
Jamiah Watson Ohio, United States
Aug 20, 2024 15:33

I Love It The Handling Is Great And It Looks Awesome. r
Will Definitely Be Ordering Again

Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba
Donovan Valles New Jersey, United States
Aug 09, 2024 13:13

Sword came in perfect condition, and just looked absolutely beautiful.

Handmade Japanese Sekiro Katana Sword With Red Blade Handmade Japanese Sekiro Katana Sword With Red Blade
Milo Dominguez Pennsylvania, United States
Jul 31, 2024 13:33

It feels amazing, money well spent
It’s my first katana ever so I made sure it was a good purchase. I recommend this place 100%

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Dorothy Martin Texas, United States
Jul 23, 2024 13:04

My son LOVES his new sword.
Very happy with the purchase!

Wwii Japanese Army Type 98 Nco Shin-gunto Sword Wwii Japanese Army Type 98 Nco Shin-gunto Sword
Israel Ramos Virginia, United States
Jul 18, 2024 14:17

I love it. First sword ever owned. Price is decent and it only took a week and a half coming from China. I recommend this place.

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Joshua Lowe Arizona, United States
Jul 16, 2024 15:38

delivered within a very quick time and made beautifully.

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Gérson Holthausen Utah, United States
Jul 12, 2024 22:56

Love the Look of it online, but unfortunately the Dragon Carving is not as prominent as shown on the website. I’m not sure if this is on purpose or not but it seems that the lacquer/ varnish was over done and it covered the dragon carving to the point that it makes it almost invisible/ not easily seen.

Other than that I think that the Sword is amazing the Handle and the Tsuba are fitted great, I do wish that the Tsuba had a dragon design instead to match the Saya (sheath) but it’s sharp and feels really good in your hands.

If you want to buy it I’d double check regarding the Saya (Sheath) dragon carving and if it’s supposed to be dark like that or not.

Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon
Zach Musselman Pennsylvania, United States
Jul 03, 2024 15:03

Arrived faster than I thought and it’s a very beautiful katana!

Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon Handmade Japanese Katana Sword T10 Folded Clay Tempered Steel Real Hamon
Aaron Davis Wisconsin, United States
Jul 02, 2024 12:06

Easy process and received them quicker than I thought since they came from overseas. They seem to be very good quality and are exactly what we wanted. I would recommend them to anyone.

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Billy Jollie New Jersey, United States
Jun 26, 2024 17:11

High quality feeling, a little bit of chipping in the color on the guard. pretty expensive

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Mark Rose New Mexico, United States
Jun 21, 2024 06:19

Blade is nice, but not very sharp. The sheath part (forgot what it’s called) is poor quality, and it leaves chips of wood on the blade when pulling it out

Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba Handmade Shirasaya Katana Damascus Steel With Red Blade Without Tsuba
Christian Weinheimer Ohio, United States
Jun 20, 2024 16:21

Everything on the Katana was tight, Ito wrap, the fittings, tsuba, habaki. The blade does NOT wable. Heavy duty T10, for ridged durability, and a shape and elegant taper for the blade profile. Made for an excellent bamboo cutting sword.

The blade after cutting bamboo after bamboo, (28 stalks) had preformed above my expectations. It showed no signs of chipping, wearing, or anything that would affect the blade and make it go to failure.

It was right out of the box sharp and choji oiled.

I highly recommend this katana, a very skilled craftsman had assembled and forged this T10 blade. The Hamon is absolutely perfect and authentic.

Despite the reviews on Reddit, I was a little weary of dropping that cash on a sword like this, but it is for sure worth it.

I only hope that every katana on this site is assembled, forged with such skill and pride. For a Chinese sword made with Japanese traditional smithing, I can safely say that the katana you might be looking at is worth it.

They have excellent customer service.

Handmade Japanese Katana Sword T10 Carbon Steel With Sunflower Tsuba Handmade Japanese Katana Sword T10 Carbon Steel With Sunflower Tsuba
Jennifer Chaffee Indiana, United States
Jun 12, 2024 14:35

very fast shipping! was a gift for a 21st birthday. was incredibly pleased with the purchase. the set looks amazing and he's very happy with it.

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Noah Nanke Florida, United States
Jun 09, 2024 13:59

Very Amazing!!!! love the design i got and the quality is top notch. feels nice to hold and goof around with also makes a great piece on my wall! will definitely buy from here again!

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set
Jake Pruett California, United States
Jun 07, 2024 17:33

Quick delivery of the sword set and they look amazing. Each was carefully wrapped and the blades were even oiled to prevent any damage. Only thing is the stand I ordered had to be shipped from China so I'm still awaiting that.

Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set Handmade Ghost Of Tsushima Katana Sword Katana And Tanto Sword Set

FAQs

A katana is a japanese sword characterized by a curved, single-edged blade with a circular or squared guard and long grip to accommodate two hands. 


The katana is generally defined as the standard-sized, moderately curved Japanese sword with a blade length greater than 23.86 inches. It is characterized by its distinctive appearance: a curved, slender, single-edged blade with a circular or squared guard and long grip to accommodate two hands.


Western historians have said that the katana was among the finest cutting weapons in world military history. 

Having a regular cleaning routine in place is key to maintaining your katana. 


You can purchase a traditional sword cleaning kit that will have everything you need. There are three steps: removing oil, polishing the blade, and oiling the blade. 


Using a sheet of rice paper from the kit or soft cotton cloth, remove any oil that is still on the blade from the previous maintenance. Take the powder ball and tap it lightly against the blade about every two inches or so along its length. Take a fresh piece of rice paper and rub the powder over the blade to polish it. Do this until both sides of the blade have been polished and the powder completely removed. Take the bottle of oil and apply a few drops along the length of the blade on each side. Use a fresh piece of rice paper to spread the oil evenly on the blade.

The most iconic and well known of all the Samurai swords; the katana is distinguished by its long blade and handle that is made to accommodate two hands and strike from a large distance. It has a curved, slender, single-edged blade with a circular or squared guard. The katana has a set of dimensions that separate it from other samurai swords. A traditional katana will measure 3 to 4 feet in total length, with the hilt taking up one-fourth of the total and a characteristic curvature of more or less than 1 inch. 

A full tang katana is the sword where the tang extends to almost the whole length of the handle, which makes the blade and the handle the same piece of metal. This gives to the sword certain rigidity and makes it a very solid piece to enjoy.


Full Tang katanas are handmade swords. They can be made of various stainless-steel types according to the Carbon Concentration. The forging is the essential part of the production because it allows the samurai sword to be solid and relatively light. Commonly, the piece of metal is repeatedly heated by fire and hammered while the metal is being folded. The mounting of the different parts is a very delicate operation that has its origins deep in the Japanese civilization. Samurai are used to cherish their Katanas as their trusted partners, and they handle them with love and care. 

Clay tempered katana are swords made according to a particular process of blade reinforcement. During the forging, there are steps to go through involving several steps and some compounds mixture, used by the entire swords forger, yet each has its own formula. The compound mixture is none but Clay recipe that each forger has a secret ingredients list. Clay tempering is supposed to be an art more than a sword works. Clay tempered katanas are said to be more resistant and durable. Clay treatment must be operated by professionals to be efficient. Also, each steel type is supposed to be responsive to different clay compositions. 


Traditionally, Carbon Steel is obtained by firing up a particular type of charcoal within a Clay Tub for approximately 72 hours. Iron powder should be added at determined amounts to associate appropriate quantity of Carbon. At the end, the obtained Steel is Stainless; its solidity depends on the amount of Carbon that associates to Iron. The steel obtained is referred to by four digits number which designates Carbon by the two first digits and the percentage of Carbon within the steel. Thus, 1045 Carbon steel refers to Carbon steel material that contains 0.45% Carbon fraction. It is called Medium Carbon Steel as well because that carbon concentration is the minimal required for the Steel to be used for industrial purposes; there are lower concentrations of carbon, but the materials are not suited for industrial use. 1045 Carbon Steel is suited for making katanas because it is cheaper than the other materials used for this industry. It is softer and easily forged. The proper application of the hardening techniques and the Clay treatment, certainly produce amazing steel that can be forged in real pieces of arts.


1060 Carbon Steel is a high carbon steel. The number 1060 refers to a material made of an alloy of Iron with a Carbon tenor of about 0.60%. Other elements can be found mixed to this alloy, but their tenors are not very significant. 1060 Carbon Steel Is harder than 1045 Carbon Steel; this property makes this steel harder to forge. The high Caron tenor makes the 1060 Steel more durable, but it is not high enough to compromise its pliability. The swords made of 1060 Carbon Steel keep their edges sharp longer and they are more expensive. It is the favorite steel material of famous swords companies.


1060 Carbon Steel katanas inherit the durability and the hardness of the steel material. 1060 Carbon Steel Katanas require more effort to produce. The edge is durable, and the sharpness lasts longer. It is more resistant to corrosion and oxidation and therefore requires less maintenance processing than the 1045 Katanas. Though, it is very important to clean the blade and polish it after every extensive use to ensure the durability and the sharpness, and to keep the edge healthy. 1060 Carbon Steel Katanas are expected to be heavier than those made of 1045 Carbon Steel, because of the steel properties. These Katanas create curves while being forged. This is the property of high and medium Carbon Steels: they keep a certain softness which makes them to develop ideal curves  during the clay tempering processes and folding operation. The differential hardening and the folding operations, which are meant to harden the blade can increase the weight of the piece; this situation is handled by an aesthetically implanted blood groove that help eliminate the extra weight but keep the resulting spine from the differential Clay Tempering process.


1060 Carbon Steel Katanas have the medium rank between 1045 and 1095 Carbon Steel Katanas. It appears that they are appreciated for their durability, their hardness and for their affordable price if compared to properties. The easiness of forging reduces dramatically the price of the 11060 swords and makes them very popular.


1060 carbon steel katana is customizable from the forging to the mounting processes. You can chose the Hamon type, the sharpness of the edge, the hardening type and even the forging process. 1060 Carbon steel is hard steel but it is susceptible to hand forging, special press mechanical devices and to milling by dedicated machinery. Opting for 1060 Carbon Steel material is to choose low price material that can be forged into resistant and valuable pieces.

1095 Carbon steel is carbon steel that contains 0.95% of Carbon. Actually, it is called very high carbon steel. This carbon percentage results in hard steel, which is hardly forged by hands. The heat treatment must be conducted delicately because the carbon tends to leak at a certain temperature and if improperly heat treated.


?Heat treatment is to be operated very carefully because it is a delicate operation: improper treatment can result in loss of the carbon fraction and therefore the non-obtaining of the martensite, which can result in the loss of the whole material. The 1095 Carbon Steel comes to be softer than the Stainless Steel, yet it is easier to handle, durable, and more resistant. But among the Carbon Steels, 1095 is the hardest and perhaps the best choice for making swords intended to last longer while being roughly and frequently used.


The Carbon element makes the obtained steel relatively resistant to oxidation even if it has no chromium to be considered stainless. Although, the acquired durability which excels the durability of the Stainless Steel, makes Carbon Steel more preferred for making Swords.


1095 carbon steel katana inherits the hardness and the toughness of the Carbon Steel material. The Swords are intended to regular use and very frequent Dojo cuts. For outdoor displays and shows, 1095 Carbon Steel katanas are more suitable than the 1060 and 1045 Carbon steel Katanas; the last one is already preferred when it is about decorative use. The hardness of the Steel makes the forging process into sword a tough operation and increases the price value of the resulting piece, if handmade. This characteristic induces excellent durability for the 1095 Carbon steel Swords. The durability and the Edge Sharpness are reinforced by the Differential hardening process. It is important to notice that Clay tempered 1095 carbon steel katana are resistant to corrosion and are more resistant to oxidation; they are perhaps stainless. These swords are easier to sharpen and they do not need to have a thick layer of what the swordsmen call 'meat'; the edge keep its sharpness for long time.


The hardness of the 1095 Carbon Steel katana is inherited from the Steel material used for the forgery. Actually, forging Katanas fusing 1095 Carbon Steel appears to be harder than forging swords from others Carbon Steel types. Thus, the price of a 1095 Carbon Steel Katana tends to be higher.


Although 1095 Katanas are tougher than the others Carbon steel Swords they are still susceptible to abrasion and to corrosion if they are not properly cleaned and carefully maintained. Thus, applying cleaning process and using the recommended oil and tools to proceed may augments the durability of the edges and keep the 1095 Carbon Steel katanas properties for long time.


The toughness of the blade, which allows it to be the favorite choice for frequent functional use, may require particular pieces to mount on the blade to form the final Katana. Already, the Carbon steel type has imposed the forging process.


1095 Carbon Steel Katana are full tang katanas because of the hardness of the material and its resistance to shocks which require a tough handle mounted on a tang that is solid enough. Differential Clay Tempering results in a hardening the edge and keeping the spine softer, this operation may increase the durability of the edge and enhances the resistance to corrosion, therefore the edge will support the frequent dojo cut and outdoor display.