Instagram Live 17/04/2024 A first feedback about NSK Oboro stones

Testing mostly 200 and 400, comparing to Hakuto line, to Venev stones and to traditional whetstone Imanish 220 grit.
Please if you have questions about thoses stones, type it in comment, I will maybe make a shorter video to summurize my thoughts.

[@Crazyknives]

I think you Are a perfect Candidate to Create a line of Stones, with all the experience that you have,

[@milangraviercoutelier]

Thanks ! I don't have time for that but maybe I'll do a collab one day !

[@francoisduhem2585]

Hi , I’m french but I will ask my question in english so everyone can understand. First of all, great video and you make great knives, I hope to buy one from you some day. I’m a hobbyist (spelling ?) and I’m looking for diamond stones. At this stage, would you recommend the naniwa diamond stones over the nsk’s ? What are the key differences between them ? Thanks in advance for your answer and keep up the good work !

[@milangraviercoutelier]

Hey François, we can talk on instagram for more details but here is a first answer : Naniwa diamond are good stones, 1mm thick abrasive and about 150 euros. NSK are 3 to 4mm thick and about 280 euros. So for the price you'll have more diamond and stone with NSK. Naniwa are easily available though but now NSK start to be more available here and there, even in Europe. NSK got a large variety of stones depending the uses and start from 200 grit to 10k. Naniwa is 400 to 6k. My advise would be to go with NSK but a Naniwa is not a wrong choice and some friends use them and really like them

[@francoisduhem2585]

Thanks for your answer. For flattening them, do you thing that the shapton iron cast lapping plate ( not the diamond one) with some loose sic powder could be a good option ?

[@milangraviercoutelier]

@@francoisduhem2585 I honestly don't know.. But I would say maybe expensive because I don't know how much is the cast iron plate but you can work with just a piece of glass and sic powder, it will work just fine. The glass is not more flat ? just change it. It's cheap

[@nweibull]

After 3 months, how are the Oboro stones holding up? Do they wear as fast as the Hakuto stones?

[@milangraviercoutelier]

I want to make a video someday soon about my feedback on those diamond stones and other stones I have tested. To my point of view they are holding up, they seem harder than Hakuto... But it is not an easy answer. For exemple : If I compare Oboro 200 vs Hakuto 1 200 : Yes, I would say Oboro will wear slower. If I compare Oboro 400 vs Hakuto 1 400 : I would say they are similar in wearing. Hakuro will cut more shallow and will work a little better on hard steel to my point of view. Oboro 800 vs Hakuto 800 : again, pretty similar, maybe a little better about wearing for the Oboro but not by much. I don't have a hakuto 200 anymore, it's dead now, so I hesitate to buy another one to make a better comparison, not based on memory, which it is right now. Oh, and Oboro 400 vs Hakuto 1 400 vs Hakuto 1s 400 : both oboro and hakuto 1 wear much slower than 400s which is fast as hell but for my way of working wear too fast and should be use only for hard steel, not iron. Hope that help,

[@NSKmaster555]

私が作ったダイヤ砥石使ってくれてありがとう

[@milangraviercoutelier]

@@NSKmaster555 作ってくれてありがとう。 毎日使っているとても素敵な石です。

[@NSKmaster555]

@@milangraviercoutelier 皆さんがもっと喜んでもらえるように、砥石の開発頑張りきす。今後ともよろしく。

[@halczex]

Great content! I am considering getting one or two NSK medium grit stones for sharpening edges. Do you have any recommendations? Now I finish my sg2 and aogami knives at Morihei 4k. I am thinking about NSK hakuto 1, 800/1500 3k/6k

[@halczex]

And also is there a link to that hard SIC stone?

[@milangraviercoutelier]

​@@halczex hello, to be totally honest I don't use nsk stones for sharpening, mainly because I use low alloy steel. On some stainless I sharpen rarely I use the hakuto 1 800 and it is great. I got the 2000 oboro now and did not test for sharpening but should be OK. Oboro will stay flatter I think if that is important for you but hakuto will feel more abrasive and release new abrasive more often as softer. Personally I would use those expensive stones only for steels that need diamond abrasive. I never worked sg2 but it should benefit from be sharpen with diamond. Aogami not necessarily. About the sic stone sorry it was given with a machine I bought. It is just a sic stone that is used to grind grinding wheel on machines. Look for trueing stones or flattening stones for machines