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the sound of slicing the paper is so gooooooood! a true ASMR 👌

perfect progression on the stone from 200 to natural but in between do u deburr? removing the burr? or after the 400 why not create and burr on the 1000 ?

Pozdrav, lijepa kolekcija kamenja

11:18 I always follow the guiding text "Be pure and simple There can be no stage in any practice where one thinks he has achieved everything. Such a feeling of perfection is in itself contrary to practicing the path. A man who has been dissatisfied with his results all his life, although he practiced wholeheartedly until his last breath, has, in retrospect, achieved his goal. Becoming pure and simple and cultivating concentration without pursuing more than one goal is a difficult task in life. Pursuing the goal, unless done with a pure and clear mind, never leads a person onto the path. It is essential to think only of service as a follower and of military virtues." From the Book Hagakure from Yamamoto Tsunetomo I hope the translation from German to English is meaningful My question is which synthetic stones do the blacksmiths or Togishis use to create the shape after hardening? Stones that are coarser than 200 grit.

Hi Ivan, Really great videos - it's inspiring and motivating to see the care you put into your work. I was wondering if you could explain what causes the parts towards the spine of the knife to not be touched by the stones and remain as is from being forged? At 19:20 it kind of looks like the knife's thickness remains roughly the same until about halfway down from the spine to the edge, where it then starts to taper linearly. Is my observation correct, and is this the Shinogi line you refer to?

The unknown natural stone looks like a Bushu Stone to me. Very unique!

Imagino o que faria com elas .

What do you call the wooden tub that you used to fill the water, and how do you clean it after use ?

Your stone collection is the most complete since the Stone Age. 😮

Wonderful video. I find it very relaxing

That is such a beautiful stone

Love watching you sharpen - it’s different and super effective

I'm truly a sucker for people with vision. People who make everything an expression of soul and art, even if it's the most common daily tool. They see stories that have to be told around them, in objects and elsewhere. Takada is sort of a renaissance man, that curiosity towards everything resonates with me personally.

Es un placer ver sus vídeos, puramente tradicional en estilo , materiales y ambientación, gracias por compartir, saludos

Harnessed OCD is a beautiful thing!

Most wonderful exclusive content as always. Thank you, sir!

Simplemente espectacular

Fun and timely video to me. This fall I had material labs about steel hardening (the test was about cooling time and created roughly HRC from 55 to 30 for Imatra MoC 410 M steel). Taught me a lot about how important the even and quick cooling is to the hardening process. There was also labs about aluminium and steel hardness as well as microstructure like carbon deposits in martensite/austenite in (grey and ductile) cast iron for mechanical engineering studies, very curious. The uni had got a new type of hardness tester we got to try as well, really fascinating when you actually get to view a microscopic image of the hole on the monitor and defining the result by measuring the hole via computer software. Japanese katanas and tamahagane were also mentioned. To test blades, if it was a regular thing, it would probably be reasonable to build some sort of jig that holds and supports it parallel to the diamond. I wonder if anyone has bothered with that. I've been so busy I haven't been able to keep up with the video series, but I really enjoy watching these on Christmas vacation, the commentary has just improved. Learning so much of this unique expertise. Why aren't the tang straight corners rounded? I'm used to the idea that wherever there are straight inside corners, you round them, just like behind the blade. Is the focused structural stress just not relevant in cases like kitchen knives? Admittedly they're not load bearing in the same sense or measure as mechanical machines and power transmitting parts. And talking about the hardness's difference to sharpening, when I started learning sharpening, this titanium blade made me scratch my head when it felt like I did nothing to it. Unsurprisingly having a bit of material studies and curiosity revealed a lot about it to me. Like how if you use titanium over steel, you probably want to 3D print it preferrably instead of machining (or sharpening) it.

I'm looking forward to see the final masterpiece.

I love these videos. Every time I watch a new episode, I feel like I'm taking part in some ceremony, some solemn event. The atmosphere of these videos is wonderful, it calms, inspires and makes you wait with joy for the next ones. I patiently wait for new episodes and in the meantime I watch the previous ones again :) I love watching you at work, thank you very much for sharing your knowledge with those who are interested. I'm just starting out when it comes to polishing and thinning, but after each of your videos, I feel some kind of influx of knowledge and immediately want to stand by the stones :) Warmest regards, a faithful viewer from Poland, lots of health and many wonderful and unique projects.

Really nice video! I have to say, i like the voice over part much more than the interview/speaking into the camera. I feels like the later is heavily edited and cut in the other videos which one notices. So I would you love to see more of that voice over for the future. Can you explain in more detail the different steps of this fingerstone polishing? You mostly say the name, but what is it? Special finger stone, special technique? Just the soft part? Also the hard?

Such a treat to sit down with a coffee and watch these videos. This suji is coming together so beautifully!

This yoututbe channel is pure gold

💯❤‍🔥

Wonderful watching this. Thank you for sharing.

I can't tell whether it's Sashikomi or Hadori/Kesho finish because it seems that there's a mix of the two at certain parts of the tachi. What style did he use?

Who is that speaking in the background when the sensei is talking at the front? It's disrespectful.

Very informative explanation. I’m happy to get such great advices.

There's nothing like seeing these priceless items with so much love, respect, honor, craftsmanship, and history. My love and appreciation for Japenese history & culture and, most importantly, the knives/ swords made has a overwhelming humbleness and appreciation for all Japan. Id love to purchase a Tanto & Katana from this master as there are not many true masters left. How can we make this happen [ivan]

This sharpness from a 400 grit stone complete blew me away.... I though I am decent at sharpening, apparently I have a long way to go.

Must be a quarter of a million dollars in stones!

The engraving is incredible, it almost looks like it was arc gouged or similar.

He doesn’t even know that we in the western have the worst knives compare to Japanese 😅. Low hrc, fat, geometry every time the same no one have a signature style like in Japan. You can easily detect a yu kurosaki you will definitely know that’s from him.

3:43 I drooled

WOW!!!!

HONYAKI!!!!

Can you tell me, please when I have created a burr with a 400 stone and I have a very good edge with the burr completely removed, do I have to create everytime a new burr when I move from one stone to the next stone like 800/1000/1500/2000/3000 grit stones ?

Crazy how the details come out in the steel from that stone

Natural Kaisei are hard to obtain. But a fair alternative is Aizu. I have both Kaisei and Aizu JNats so speak from experience. Nice videos. 🤩

I have heard that the Aoto isn't a super popular stone, but I LOVE my Aoto! It does indeed do a wonderful job with Kasumi finish I have found with most of the steel I use. I have to say though, mine is nowhere near as large. lol I am envious of that large stone, and would love to be able to enjoy a stone of that size! While I personally wouldn't benefit from having such a large stone, I still want one like that simply because it intrigues me. 🙂

The 100k is when you need a micro surgery of a cucumber 🥒 without leaking a single drop of water 😅like a hart surgery. The knife in the video is sharper then medical Instruments for surgery.

Do you need necessarily natural or waterstones with hand sharpening or can you an achieve the same or actually better results with a tormek t-8 ? Or with less expensive waterstones like king stones ?

I am 35 years old and now I am understand through video, that I know 10% about Japanese knives/swords. It’s very interesting to see such beautiful things. I like the calm voice and the reserved atmosphere. It 🧘‍♀️ chills me down.

So beautiful

Ivan an interesting technique I have used when sharpening straight razors and examining edges with a microscope, is sharpening with the stone under a lightly running stream of water. I was reminded of this when you spoke about putting the stone on a slight angle at the 15 minute mark to help drain excess grit off the surface. Have you ever tried this technique during your knife polishing process? It’s interesting how the surface of the stone can be the ideal grit level but then when the grit is loose on the surface of the stone excess scratching happens from clumps of grit on the microscopic level, I noticed a big difference in my polishing of razor levels with the running water technique finishing.

I always love your videos, explanations, and the tradition behind your work. You have shaped my sharpening far greater than anyone! I have a question about the bucket and powder you used. What is it, and what does it do? I have not seen you do this before? Thank you in advance! Side note, I am always in awe of your stone collection. both synthetic and natural. So many amazing stones from what I can see! I have many stones as well, but your collection is far greater and consists of far better stones than mine. One thing I do have that is exactly as yours is an Aoto, specifically the Tanaka Kyoto Tanba Aoto you have. I sealed mine due to some cracks, do you ever seal, or have any of your naturals sealed?

I followed the first parts on TH-cam. Is there a completed video?

Super video thank you for sharing your knowledge.

It is humbling watching a master artwork. Please explain what the powder is that you put in the first bucket, and what it is for. Also, the wood slivers in the secound bucket of water.....I am at a lost for that purpose too.

Amazing glimpse into the art of sharpening. Meaningful and beautiful 🙏