Nubatama Bamboo 320
Nubatama Bamboo 320
Nubatama Bamboo 320

Nubatama Bamboo 320

Item #: NBamboo320

Average Customer Rating:
(5 out of 5 based on 1 reviews)

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Our Price: $109.00
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Nubatama Bamboo 320 Grit: 205x75x30. In this video, I demonstrate the 320 grit Nubatama Bamboo stone. Although I mention the Kikuichi Yanagi, I don't get around to sharpening it in the video (oops).

The stone is not that porous and quickly saturates. It does retain swarf easily, a characteristic that it shares with the JNS 320. The swarf doesn't easily remove even with scrubbing with a nail brush. This doesn't interfere with its performance. It also gives a relatively shiny finish.

I start off with a Moritaka 'mini nakiri' similar to a produce knife that fruit vendors use for sampling fruit to their customers or testing the quality of their produce. It is a kurouchi blue steel knife, a little more abrasion resistant but ultimately not quite as sharp an edge (a small difference most won't notice). Produces an excellent edge. An excellent match.

I comment on how to vary the stone's performance by water saturation levels, mud level, pressure, etc. I note bubbles coming up, a sign of a stone not completely saturated.

As an aside I comment on having the stone stay in place during a video, something I didn't do so well in an earlier review of a 400 grit stone and something I find annoying when others let their stone slide around.

Next I work on the Sugimoto Carbon steel short Chuckobocho. This also produces excellent results, easily yielding an edge that both slices and push cuts paper well, retaining some toothiness too.

Customer Reviews

Product Reviews

5  Awesome stone!, July 11, 2016
Posted By: Carol T.

This is the most expensive stone I have, and I had a bit of a hard time believing it would be worth it to me. Over time, I have come to be very glad I got this, it is a great stone. It cuts extremely well, and wears very slowly. Ken Schwartz recommended it to me as part of a whole range of Nubatama stones, as THE stone to follow the Bamboo 150, and he was absolutely right! The 320 works extremely well with the scratch pattern left by the 150. The stone does stain like mad, but this doesn't seem to affect its performance.

I have also used the 320 as a starting point rather than to follow the 150, and it works very well for that, too, far better than the stones in this grit range I have used in the past. In the end, I am glad I spent the money getting this stone rather than a lower-cost 320 or just making the jump from the 150 to a 1K.


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