Update: I got the knives mirror sharp. It took a medium diamond stone to set the bevel, followed by 320, 400, 600, 800, 1000, 2000, 3000, 5000, 8000, and stropping. I did not use the Tormek, because I left it at the shop, and decided to make this a fun challenge.
The exception is the serrated knife. I flattened the back, as the guy had put a double bevel on it. I decided not to try to bring back the teeth. The knife had other issues where it looked like he mistakenly ground a nick in the end of it. It’s a lost cause to try to repair.
The boning knife is one that I showed the original picture of where he had destroyed the inside curve on the grinder. I reshaped it on the spindle sander and then sharpened it.
I am not charging her, and telling her to take the money and get a new serrated knife. She’s a nice older lady so I decided to just let her have the sharpening free since honestly it should have been charged as a repair for each knife, so if I’m not charging her for that, I’m just not going to charge her at all. I had to regrind two of them, and work out major grinding marks from the rest. Clearly this guy used a coarse high speed grinding wheel to sharpen these things.
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Having dealt with aging professionals somewhat I can say that some stay in the game too long. It could be that he was just trying to serve an existing customer when he was really no longer capable. Just sayin' . . .
"A hen is only an egg's way of making another egg".
– Samuel Butler
I personally wouldn't know where to begin on a serrated bread knife. This Christmas I bought my girlfriend a Shun bread knife and that's all I could think about, how on earth am I going to sharpen this knife when the time comes?
It is easy if the knife is made with no bevel on one side. Use a slip stone to touch up the serrations and then a flat stone used flat on the non-beveled side.
Some of my inexpensive serrated knives are hollow ground on both sides of the blade. So far just a touch up of the serrated teeth has seemed to keep them cutting well.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)