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Any good source on that?
I know they cold hammer kanna blades (jap. plane blades) if they need to fix them, they can warp over time because of tension from the hardening.

You got it all right! :)

Sounds good but what's a "Snapple bottle", diameter?
My tool was small in diameter but it worked out by moving it and then I remember holding it a little sideways.
I think the main thing is to...

Long time ago so haven't got any more pics than another that is sort of the same but might help with some explanation.

Here's another;

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At first I tried the traditional way for Jap....

Yep, the non stamped side could do with a little fix up!
It can still hone up fine but it will be easier with less metal on the hone.

Here's how I fixed one of mine;

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A diamond tool...