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Proper use a of diamond steel for honing/sharpening?
I used to have knives sharpened by outside services, they would grind
the blades with the abrasive running away from the edge. However in the kitchen I would hone the blade by running it in a diagonal action but nevertheless with the blade moving into the hone. i,e, the opposite direction to the sharpening.grinding process. Now I have been playing with one of those diamond steels. How should they be used? I am using the same technique as with a standard steel and the results are fine but I am sure I can learn something here! |
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When you grind metal you create two burrs, an entrance burr and an exit
burr. If the angles are the same, the exit burr is always larger than the entrance burr. Since this will be your final sharpening operation and you want your burr to be as small as possible (theoretically zero) you want to move the blade onto the steel. For better control of the angle, place a folded towel or other cloth on the counter, hold the "steel" in your weak hand, (that is PC for left hand) and slice the knife down each side of the steel with your strong (PC for right) hand. See http://users.ameritech.net/knives/knives2.htm#steel2 for a picture. Steve Sharpening Made Easy: A Primer on Sharpening Knives and Other Edged Tools by Steve Bottorff Copyright January 2002 Knife World Publications www.sharpeningmadeeasy.com Peter wrote: > I used to have knives sharpened by outside services, they would grind > the blades with the abrasive running away from the edge. > > However in the kitchen I would hone the blade by running it in a > diagonal action but nevertheless with the blade moving into the hone. > i,e, the opposite direction to the sharpening.grinding process. > > Now I have been playing with one of those diamond steels. How should > they be used? I am using the same technique as with a standard steel > and the results are fine but I am sure I can learn something here! |
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Thanks Steve,
So to confirm, the use of a diamond steel, which presumably grinds, is the same method as a conventional steel, which just straightens the knife edge? |
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Peter > wrote:
>So to confirm, the use of a diamond steel, which presumably grinds, is >the same method as a conventional steel, which just straightens the >knife edge? Umm, I think you're confused -- "conventional steels" grind, too (they're made of harder steels than knives are, while diamond steels have diamond dust embedded in the steel, so as to provide guaranteed "bite" against knives of any hardness). If a knife edge is "bent", there's really no way to "straighten it", since steel gets harder (and more brittle) when worked. For the most part all you can do is take that bent part off in little pieces until it's basically smooth again. Next time you use your steel, wipe the edge of the re-sharpened blade with a wet paper towel (a good idea in any case), and see the metal filings. Donald |
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>Umm, I think you're confused -- "conventional steels" grind, too (they're
>made of harder steels than knives are, while diamond steels have diamond >dust embedded in the steel, so as to provide guaranteed "bite" against >knives of any hardness). Yes, I was confused and thanks for your correction. I really did think that the steel merely bent the edge of my knife back to a straight edge but had no grinding action. |
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>Umm, I think you're confused -- "conventional steels" grind, too (they're
>made of harder steels than knives are, while diamond steels have diamond >dust embedded in the steel, so as to provide guaranteed "bite" against >knives of any hardness). Yes, I was confused and thanks for your correction. I really did think that the steel merely bent the edge of my knife back to a straight edge but had no grinding action. |
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"Donald Tsang" > wrote in message
... > Peter > wrote: >>So to confirm, the use of a diamond steel, which presumably grinds, is >>the same method as a conventional steel, which just straightens the >>knife edge? > > Umm, I think you're confused -- "conventional steels" grind, too (they're > made of harder steels than knives are, while diamond steels have diamond > dust embedded in the steel, so as to provide guaranteed "bite" against > knives of any hardness). > > If a knife edge is "bent", there's really no way to "straighten > it", since steel gets harder (and more brittle) when worked. For > the most part all you can do is take that bent part off in little > pieces until it's basically smooth again. Next time you use your steel, > wipe the edge of the re-sharpened blade with a wet paper towel (a > good idea in any case), and see the metal filings. > This is not true. Conventional steels do not grind, they only straighten. -- Peter Aitken Visit my recipe and kitchen myths page at www.pgacon.com/cooking.htm |
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Remember that the diamond "steel" will actually remove metal, while a
"steel" steel (and stropping) simply polish the blade by "realigning" the microscopic teeth of the edge. If you are used to producing an edge by creating smaller and smaller burrs (a good technique I recommend drawing the edge across the diamond steel, AWAY FROM THE EDGE), and periodically feeling the entire length of the blade for the burr. use the steel in the same direction (drawing away from the edge), with progressively fewer passes and less pressure on each side, feeling for the burr after each series (5,4,3,2,1). Others swear that you have to "cut into" the steel, and claim excellent results. I think that ultimately it is best left up to you. Try both ways, and decide which blade best meets your needs. Remember to steel often for the best results. Mike Acord Peter wrote: > I used to have knives sharpened by outside services, they would grind > the blades with the abrasive running away from the edge. > > However in the kitchen I would hone the blade by running it in a > diagonal action but nevertheless with the blade moving into the hone. > i,e, the opposite direction to the sharpening.grinding process. > > Now I have been playing with one of those diamond steels. How should > they be used? I am using the same technique as with a standard steel > and the results are fine but I am sure I can learn something here! |
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It depends on the steel and the knife. A cut steel, fine or rough, will
remove metal from a relatively soft knife like an old carbon steel or a cheap stainless knife. It may or may not remove metal from a better stainless steel knife. A packers smooth steel, or slick, will not remove metal from any knife. A diamond or ceramic steel will remove some metal from any knife. Steve Sharpening Made Easy: A Primer on Sharpening Knives and Other Edged Tools by Steve Bottorff Copyright January 2002 Knife World Publications www.sharpeningmadeeasy.com |
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