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 Post subject: Sharpening hiromoto Gyuto
PostPosted: Sun Mar 16, 2014 6:37 am 

Joined: Sat Aug 03, 2013 12:06 pm
Posts: 43
On what angle should I sharpen this knife? is the bevel 50-50?


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Sun Mar 16, 2014 2:11 pm 

Joined: Wed Jan 15, 2014 9:40 pm
Posts: 258
hiro's are 60/40 from the factory, it will take a very acute edge if you so wish ive gone as low as 15 inclusive on mine with minimal loss in retention.
but I usually do about 10 on the face side and 15 on the back side gives me a real long lasting edge at work.
If you prefer to sharpen 50/50 its not a problem on this knife, just go at it as normal and you will change it over time


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Sun Mar 16, 2014 11:36 pm 

Joined: Sat Aug 03, 2013 12:06 pm
Posts: 43
Does this mean that I have to hone it on different angles as well?


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Mon Mar 17, 2014 11:03 am 
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Joined: Thu Apr 19, 2012 7:18 pm
Posts: 7564
Location: Madison Wisconsin
Sharpen it evenly at about 15 degrees on each side. At least that is what I do on mine. Ignore what the factory did to the edge.



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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Mon Mar 17, 2014 4:01 pm 

Joined: Wed May 16, 2012 1:49 am
Posts: 305
Location: Amstelveen, The Netherlands
Makes sense only if you've previously recentered the edge by making the left bevel much larger, and heavily thinned the right side. Otherwise, if you do it on a brand new one expect it to cause heavy clockwise steering after a few sharpenings, because you will have increased friction on the right side without balancing on the left one.


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Mon Mar 17, 2014 4:24 pm 
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Joined: Tue Feb 05, 2013 6:00 pm
Posts: 2324
Benuser - how are the Hiromoto's ground on the main blade? I assume the left side is less convexed than the right by the way you're describing the edge requirements. I'm not talking about the edge bevel, but the main grind up to the spine.


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Mon Mar 17, 2014 4:54 pm 

Joined: Wed May 16, 2012 1:49 am
Posts: 305
Location: Amstelveen, The Netherlands
Left side almost flat except for the last 1/4" which is slightly convexed; right side entirely convexed. This is the way they now come out of the box. A few years ago there was no convexity on the left side at all.


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Mon Mar 17, 2014 5:03 pm 
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Joined: Tue Feb 05, 2013 6:00 pm
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Sorry for the additional question Benuser - what type of edge/angles/asymmetry do you put on your Hiromoto?


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 Post subject: Re: Sharpening hiromoto Gyuto
PostPosted: Mon Mar 17, 2014 5:12 pm 

Joined: Wed May 16, 2012 1:49 am
Posts: 305
Location: Amstelveen, The Netherlands
No sorry please. I start far behind the edge, but the very edge will end at some 10 degree right, convexed, 15 degree left, straight, 70/30 FWIW.


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