Ryujin DH T10 Tool Steel Katana -

Ryujin DH T10 Tool Steel Katana - "the Kurokensai"

Average rating:
average rating 93%


You are probably familiar with the Ryujin Custom Katana Series - well, this sword is made using exactly the same process and features a cool new all black fittings style as per popular request.

$199.99 $299.99 You Save $100.00
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The limited edition series Ryuin T10 Tool steel blades use the exact same blades and components as $229.99 Ryujin Custom Katana series, but being pre-made and without the extra work of customization, we are happy to pass on the savings to you with a series of our best design configurations.

As stated, and as you can clearly see below, the blades are the star of the show and come with a bo-hi/fuller bringing the overall weight down close to 2.3lbs:

This particular limited edition model is called the 'Kurokensai' meaning the 'Black Sword Saint' as a reference to the legendary figure Miyamoto Musashi, who is credited with designing the enigmatic so called 'double c ring tsuba' which alludes to his masterpiece on the art of war and strategy 'Go Rin No Sho' or 'the Book of Five Rings'

As befitting a sword bearing the title 'Sword Saint' the fuchigashira and tsuba are solid iron - and every fitting apart from the habaki and the menuki ornament in the handle is black (even the genuine rayskin is dyed black), giving it a very mean and intimidating look.

Stock is limited, so if you like this design don't let it slip away. Order now before the savings are gone for good.

How to Use

Suitable for frequent backyard or dojo cutting. Traditional cutting blade.
27.5" blade with 11" handle. Weight 2.3lbs (fullered - blade with bo-hi).

Materials and Construction

Differentially hardened fully sharpened T10 Tool Steel blade with real hamon. Solid iron fittings. Black ito over authentic dyed black rayskin. Glossy black lacquered saya with black sageo.
Shipped from the Ryujin workshop in Los Angeles within 2 business days. $20 flat rate USA shipping for up to 2 swords via UPS or USPS, FREE shipping if 3 or more swords ordered at the same time. International shipping via USPS, $60 to selected international destinations by USPS. Click here for more shipping information

Warranty Info

Each sword is guaranteed to be as described and 100% genuine product. Each sword is also covered by in full by the Manufacturers Warranty PLUS our extended LIFETIME Warranty against blade breakage. Click here for detailed warranty information

Return Policy

Satisfaction Guaranteed. We proudly stand behind every product we sell. If you are not pleased with your purchase you can return it to us within 30 days of purchase in original, unused condition for a full refund minus shipping and 10% restock fee. Click here for more info on our guarantees

Featured positive reviews:

average rating 100%
Awesome 01/25/2021
By Kay F
This is the first Ryujin blade I have gotten, And after seeing this special model on sale and seeing many reviews on Ryu's T10 line by many sword channels such as Matthew Jensen, Will Keith and Backyard Samurai, I quickly formed the view that these swords are beautiful cutters for the price, and I'm happy to say that I was proven right.

The first thing I must say about the blade itself is that it is very light, the one I recieved came with bo-hi, and out of the 8 katana I have of varying type/quality/price range, it feels the lightest and not in a toy way either, instead in a rather swift and balanced way.

the blade itself boasts a vibrant hamon; seemingly a toran style, but difficult to truly pinpoint since all are different, whatever the indecisiveness may lead to, I can say one thing confidently: It is beautiful. The polish meshes with the temper line to result in an alluring, attractive blade.

The tsuka is 11 inches of wood, above being wrapped soft cotton, under which golden colored menuki are resting on genuine blackened rayskin. The rayskin panels sparkle in the light almost pearl-like, perfecting the overall color scheme. Alas, not too much to say really. The diamonds aren't perfect, not difficult to shift around either. That said, it doesn't seem loose enough to need to be rewrapped, so it's acceptable, not a problem personally, but I feel I should advise it regardless, kashira, seppa and fuchi do not seem cheap either, and they fit tight.

The saya does what its supposed to, and the glossy finger print revealing laquer compliments the kuro aspect well. Kurigata is far back enough for the palm to fit and some wiggle room, too. Oh, and the sageo doesn't feel like the typical shoelacey stuff, It does indeed feel like cotton.

In general, the sword feels extremely responsive, when I want it to stop, it stops. It doesn't feel fatiguing to use and it feels like it could be used for trick cutting, yet it is still durable too.

The sword's steel, T10, it is a tried and tested steel for strength, It holds a great cutting edge, pairs with differentially hardened blades well especially under proper heat treatment, and to top it off T10 produce more vibrant hamon than most other steels, and so the blades weight shouldn't deter from the fact that it is made from good and tough stuff. By no means is it a super steel, its not the best type out there, but it holds up well enough for an endorsement from me.

All in all, 174.99 for a differentially hardened tool steel katana with proper koshirae? Well worth it.