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Yesterday I re-heat treated the blade. I sparktested it afterward, and it gave a nice clean spark along the length of the edge. In other words: success. Although the proof of the pudding is in the...

No problem. I'll update this thread with pics when I am giving it a go.

I have seen some of those colors develop on kitchen knives. Orange and blue. Potatos can do funny things to blank carbon steel. So in a way, 'color' can have multiple reasons. The telltale in this...

Yes and no.

If it was a big wedge, you could easily anneal it and re-heat treat, temper, and grind it. You'd lose material because the edge would have decarburized, but there would be enough...

Slurry is one of the telltale signs.
On a razor that is 61 HRc, if you hone on a 1K or 4K, the metal will take a long time to abrade.
So it will take some time for the slurry to turn from clear...

My post was not a direct reply to yours, but to the people who posted something like 'it might still be allright'. You posted your question in the right place. There is nothing wrong with your...

Excuse me, but this is the workshop forum, not the good news feel good show. You have made a mistake, as we all did sometime. You learn from it and move on. This is not salvageable. No point in...