View Full Version : Sharpening a Misono Sujihiki

03-29-2012, 01:18 PM
Hi all,

I tried to post this yesterday, but must have screwed something up. Sorry if my question ends up getting posted twice...

I need to sharpen my wife's Misono Sujihiki knife. It doesn't appear to have a bevel on the back, so I think it is a single bevel? I searched around a bit and found a video and some descriptions of uraoshi. I took a few swipes on the 8000 stone and it appears the back is convex - the middle is getting polished, but the edge and spine are untouched. So I am wondering how to proceed. I'm afraid if I try to flatten the entire back, I'll remove too much material. Should I just put a back bevel on it? Do these knives generally have convex backs?


Andrew H
03-30-2012, 08:17 PM
Put a bevel on the back, it's designed to be a single bevel knife.

03-30-2012, 08:26 PM
I have not seen one in person but I would be shocked if it was a single bevel. Sounds like the left side just has a tiny bevel from deburring. To sharpen, grind the right side until you get a burr and then deburr on the left. If you start to get steering, put a few extra strokes on the left side until you are comfortable with the performance.

03-30-2012, 08:27 PM
Uraoshi is for true single bevel knives- Yanagiba, deba, usuba, etc.

Gyuto, sujihiki, petty, santoku, etc. will always be double bevel knives. You can sharpen asymmetrically, but dont do uraoshi on those knives.

03-30-2012, 09:10 PM
What is different with Misonos is that they convex the edge of the back blade as well, and go far in doing so. I once found a 10 / 14 degree edge to be brought to 17 / 17. You don't have to follow that idea. Begin by removing the shoulder on the face side, work to the very edge and deburr the other side.

Eamon Burke
03-30-2012, 10:06 PM
It's an asymmetric edge that has been worn down. it used to have a tiny little bevel back there.

03-30-2012, 10:17 PM
Sujihiki is a double bevel knife. Sharpen it as such.

03-30-2012, 10:26 PM
Yup, what these guys said. Sometimes those back bevels are almost non-existent.
I like your wife's taste in knives, by the way.

03-31-2012, 11:22 AM
OK. Thanks everyone. Glad I asked. And glad I don't have to spend the next few hours grinding away at the back :-).