New answers tagged sharpening
You will not be able to sharpen it with a steel as per Ching Chong's answer. You will be able to sharpen it with a couple of sharpening stones. If the blade is totally blunt you will need a reasonably coarse one to bring the edge back, and a finer one to refine the edge. Then you can strop it on the steel or the back of a leather belt to remove the burr. ...
Do you mean by "sharpening steel" a honing steel? source: Wikipedia Commons; by Donovan Govan. A honing steel is not intended to sharpen a dull knife but only to straigten a skewed blade . (Exception: a diamond honing "steel" but I think it it still not intended to be the only tool to sharpen a completely blunt knife, ) If you want so sharpen you ...
You can always sharpen a knife. The point at which they are two far gone, is when there isn't any steel left. That would take an awful long time though. You (or whoever sharpens it for you) will just remove enough steel so that it is sharp again.
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