On the way to a kasumi finish 3000 Grit Sharpening, Before Using Natural Stone - part 3 | 天然砥石研ぎの準備

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🔪How I get done from 200 grit to Natural stone sharpening
Part 1
• Key Points To Start Ro...
Part 2
• Flat to Convex and Fin...
Which grain size do you use before the natural stone?
This video focuses on sharpening with 1500 and 3000 grit stones. Initially, I had planned to use a 6000 grit stone, but the Hakuto 2S 3000 Grit (Soft) exceeded my expectations.
In a previous video, someone commented that a Kasumi finish is impossible with a diamond stone, but during this sharpening process, it appeared at some grit.
To show you the reality of sharpening, we also include the unexpected incidents and how Ivan handled them. Please take a look at some of the work done by the sharpeners.
包丁研ぎ歴25年、現在は日本三代包丁産地である大阪府堺市で包丁会社に勤めているカナダ人です。
前回に引き続き、ダイヤモンド砥石で仕上げていきます。次の天然砥石の研ぎに移る前に、どの砥石を使って、どのような研ぎを行うのか。途中黒打包丁ならではのハプニングもありましたが、なんとか撮り終えました。
今回の研ぎでは、眞崎直樹氏の黒打牛刀を使わせていただきました。
貴重な包丁を研がせていただく機会をいただいた、包丁コレクターの友人には感謝しております。
[ Previous Recommended Videos ]
🌟Who is Ivan?
• My 25 Years of Hand Sh...
🌟My Sharpening Work - Kurouchi Gyuto Sharpening from Blacksmith until Natural Stone Sharpening by Ivan
• Natural Stone Polishin...
🌟My Sharpening Stone - NSK Kogyo Diamond Stone
• An Introduction to NSK...
🏠NSK Kogyo Diamond Sharpening Stone - Komon
komonjapan.com/collections/ns...
Hello, we, Ivan and Yuka have a unique experience of Japan through our business and life such as rich Japanese culture, exquisite crafts, breathtaking natural landscapes, beautiful foods and exciting travel, we share what we feel through our business and our lives. By sharing such our experiences, we hope that you will enjoy through our videos!
00:00 - Hello👋
02:58 - 1500 Grit - Dressing
04:23 - 1500 Grit - Goal of This Grit Sharpening
05:38 - 1500 Grit - Use 800 Grit Nagura
08:03 - 1500 Grit - Sharpening
09:16 - 1500 Grit - Kasumi Finish with Diamond Stone
10:09 - 1500 Grit - Deep Scratches Problem
11:55 - 1500 Grit - Switch to the Komanagura
15:36 - 1500 Grit - Done
15:58 - 1500 Grit - What I Check Before Move onto the Next Stone
16:33 - 3000 Grit - Key Points of the Sharpening
17:37 - 3000 Grit - Sharpening
21:25 - 3000 Grit - Doesn't need to use 6000 grit

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22 июн 2024

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Комментарии : 45

@Yupppi 28 дней назад

This series of videos in particular has been really useful. I managed to improve the whole knife and not just to sharpen the cutting edge for my cheap kitchen knife, by further thinning/creating another bevel. The changing scratch pattern was very helpful to observe the progress. Natural stones really seem nice, got to try Morihei and Imanishi finally, synthetic stones with mixed natural stone. Didn't know the feel to work the knife can be so nice.

@ivanyuka-japan 27 дней назад

Thanks so much! I use both Morihei and Imanishi stone and enjoy both ‘

@matthewkellman1166 25 дней назад

Truly an awesome series. Can’t wait for the next video.

@nicholaspissare5874 27 дней назад

Fantastic as always. I would love to see a classic edge sharping with no takes. Seeing the whole process of how you set the angle, how you take off the burr between stones, and a more general overview of how you sharpen would be so insightful. More of an edge sharpening tutorial. Think that would help a lot of people. Thanks for the videos.

@ivanyuka-japan 26 дней назад

Thanks so much! We haven’t done this type of video as there are so many on RU-vid, but if it’s something a lot of people are interested in seeing we will definitely consider it. I don’t want to bore people to much lol!

@nicholaspissare5874 26 дней назад

@@ivanyuka-japan I think having it done from someone like yourself would be great. I’ve been sharping knives (mostly bought from Tosho) for years, but I’m still not comfortable enough to try most of the techniques you show in your video. I still watch to gain insight and love to see the mastery. However I think most people would like a good base before they move on to the more advanced techniques you are showing. Just my opinion tho. Will watch regardless.

@axeest 22 дня назад

Exactly the steps that probably a lot of viewers are looking for in videos like this. Myself included. Great comment.

@junior90210 28 дней назад

Phenomenal. Is there a chance for a single bevel sharpening video in the future? Or the discussion about beta togi and hamaguri differences?

@ivanyuka-japan 27 дней назад

Yes there is a possibility in the future. Quick note, Beta Togi is sharpening from Shinogi line to the cutting edge, often with no change in angle. And Hamaguri for a single bevel is convexed near the edge with/without a micro bevel.

@junior90210 27 дней назад

@@ivanyuka-japan thank you! I know the theoretical and some practical differences between these two styles of sharpening, but I'm really curious about your perspective on that - meaning what are she advantages and disadvantages o both and what's your preferred method. Some sharpeners claim that beta togi is practically impossible, because of the distal taper (the kireha is never 100% flat because of the blade geometry).

@slothsarecool 26 дней назад

Why is knife sharpening so satisfying 🤪

@pedrorivera4769 27 дней назад

love your way of grinding

@mountainwolf1 28 дней назад

I also would like to thank you again because of sharing wisdom with us my knife making has improved. You have taught me to pay closer attention to the little details to forge a beautiful knife.

@ivanyuka-japan 27 дней назад

Thank you !! Hopefully these videos shed some valuable light on the process!!

@mountainwolf1 27 дней назад

@ivanyuka-japan indeed, they do you do very nice work.

@kevinpellegrino3358 27 дней назад

Also now I really want this 3000 stone 😏😏😏

@ivanyuka-japan 27 дней назад

Highly recommend!

@Nebulax123 28 дней назад

Great video Ivan! I agree on finishing I do the same and am quite satisfied with the finish. This is off topic but I thought you might know. I noticed that in the shops where they are doing many blades at once they have a green liquid they store the blades in to prevent rust and I have tried a couple times to find out what it actually is if you happen to know. The language barrier was such that I could never find out what it actually is. Thanks Bruce.

@ivanyuka-japan 27 дней назад

I know what you mean, I always saw it in a craftsman's workshop but never thought about the name, they just call it "rust proof liquid". I'm not 100% sure but it seems not for a knife, maybe for a car.

@Nebulax123 27 дней назад

@@ivanyuka-japan I am hoping against hope it is not antifreeze cause that is what it looks like. LOL I shudder to think of putting my hands in it every day that can't be good for them. If you ever find out I would love to know. If it is not something really toxic I would love to get some. Thanks Bruce

@sanduliaka 28 дней назад

Thank you. In future video can you please comment on use of finger stones?

@ivanyuka-japan 27 дней назад

Thank you for the request. We are going to talk about finger stone on the next video when we'll do Kasumi finish. Wait for two more weeks

@92boostedh22 27 дней назад

@ivanyuka. Your experience, knowledge and arsenal of stones are truly inspiring. I recently restored a deba and found gaps in my stone progression and in watching this series I know now I need more stones and to learn when to use what stone. Thank you for sharing your knowledge. This is truly a next level master class. I was inspired by a previous long format video you made where so foggy it looked unattainable. 🙏🏼

@ivanyuka-japan 26 дней назад

We are honoured that our video was helpful for your sharpening!

@paweel2494 28 дней назад

Great video as usual. Gyuto looks more and more beautiful from episode to episode. I admire your skills and I am very impressed by the way you look at the blade and choose the effect you want to achieve on the stones. In front of me is polishing my knife on stone 3000 (Suehiro Ouka). After this stage, I will see what happens and what to do next. I would like to get Kasumi on the Ohira Kiita stone from which I have figerstones. Greetings from Poland, big Fan :)

@ivanyuka-japan 27 дней назад

Thank you so much !! The Ouka is a nice stone and can give a great finish !

@paweel2494 27 дней назад

@@ivanyuka-japan I'm glad to hear. After researching synthetic stones, I chose Suehiro. I like that they are not hard and leave a nice mud. My arsenal includes Cerax 1k, Okua 3k, Rika 5k and Kitayama 8k from Imanishi. Hard work is done on Shapton Kuromaku 320.

@TheMegalegenden 28 дней назад

Yay! ❤

@Ab6killer 24 дня назад

I really love all your videos, how you made them , how you explain, and see how pro really works. How long would it take , like in hours +-? This knife project, Just interested

@ivanyuka-japan 23 дня назад

Thank you! It's about around 10 hours for whole sharpening from rough stone to natural stone finish for me.

@gtrzero2157 25 дней назад

So u have to flatten a vitrified diamond stone? Or is that a different type of stone. I thought vitrified diamond stones always stay flat? I must be wrong.

@ivanyuka-japan 23 дня назад

These are resin stone, not vitrified. But all stones need to be flatten. Unfortunately there is stone doesn't need flattening even vitrified.

@gtrzero2157 23 дня назад

@@ivanyuka-japan ahhh I understand Thank you for answering my question. Your work is amazing!!

@Doodle-.Snoozel 8 дней назад

Hey how did you get the naniwa koma Nagura synthetic to curve down?

@AKBoost 28 дней назад

Hello! Nice work. What steel is this knife made of?

@jjshane72 28 дней назад

I believe he said on the 1st part that it's s Mazaki White 1

@AKBoost 28 дней назад

@@jjshane72 Thanks 👍🏻

@ivanyuka-japan 27 дней назад

That's right thank you

@JonasDaniel95 24 дня назад

After being so involved in this Mazaki blade how did you like it? I’ve had another of Mazaki’s KU series gyuto but it didn’t really live up to my expectations also after being professionally sharpened

@ivanyuka-japan 23 дня назад

The blade needed a lot of work getting it straight and set up at the lower grits, but after this sharpening was pretty straightforward. First impressions seem to be a nice blade but the real test will be when the customer puts it to use so we will see !