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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 12:13 am 
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Joined: Fri Apr 12, 2013 12:07 am
Posts: 371
I don't have any Shaptons above the 5k, but I'm curious... Why would the Shapton pro or glass 8k be ineffective?


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 12:29 am 

Joined: Wed Feb 20, 2013 2:22 am
Posts: 559
This should stir lively debate. The Shapton abrasive is less hard than the V and Co carbides. Thinking of the steel as chocolate chip cookie dough, the Shaptons will eat the dough but leave the chips which will eventually fall out. Using diamond when you're in the high grit range actually helps shape the carbides.

At least that's the theory.


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 2:13 am 
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Joined: Fri Apr 12, 2013 12:07 am
Posts: 371
Debate? :oops: ...Don't want to high jack the thread too much. Will post in sharpening Q&A for anyone interested.


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 3:35 am 
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Joined: Sun Oct 21, 2012 1:34 pm
Posts: 326
Yay! I have Shapton Pros in 1K 2K and 8K
I also have DMT diamond stone fine and extra fine.
Thanks for the heads up Tall Dark, and may the SWARF be with you!


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 3:52 am 

Joined: Wed Feb 20, 2013 2:22 am
Posts: 559
Check the thread in the sharpening subforum. Jason just gave me a reality check and it's all for the better. Your Shaptons will have no problem.


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 5:12 am 

Joined: Wed Dec 12, 2012 6:58 pm
Posts: 63
HAP40 is best for people who doesn't know how to sharpen their knives. Nothing can beat whites #1 and #2


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 5:13 pm 

Joined: Tue Oct 29, 2013 9:21 pm
Posts: 427
What experience do you have with HAP40 steel Vovas? Have you sharpened it?


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 5:37 pm 
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Joined: Thu Apr 19, 2012 7:18 pm
Posts: 7215
Location: Madison Wisconsin
Benuser wrote:Any information about the abrasion resistance of this steel? Can it be sharpened with normal stones?


I sharpened it withe shapton glass stones and it went well. I got a burr pretty quickly with my 500 stone and then used a 1K and 4K. I was worried about this before I sharpened it but it was a non issue.

I did not try it with some of the other stones yet.



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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 5:52 pm 
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Joined: Wed Sep 18, 2013 11:21 pm
Posts: 555
Location: Minneapolis, MN
vovaskitchen wrote:HAP40 is best for people who doesn't know how to sharpen their knives. Nothing can beat whites #1 and #2


I feel this might be a blanket statement.
I know how to sharpen

My interest in HAP40 for for long term edge retention while extremely busy at work.


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 Post subject: Re: Kohetsu HAP40 questions.
PostPosted: Thu Mar 20, 2014 7:24 pm 

Joined: Wed May 16, 2012 1:49 am
Posts: 265
Location: Amstelveen, The Netherlands
chefknivestogo wrote:
Benuser wrote:Any information about the abrasion resistance of this steel? Can it be sharpened with normal stones?


I sharpened it withe shapton glass stones and it went well. I got a burr pretty quickly with my 500 stone and then used a 1K and 4K. I was worried about this before I sharpened it but it was a non issue.

I did not try it with some of the other stones yet.


Thanks, Mark.


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