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  1. #1

    Microbevel or no..?

    I put my first (ever tried) microbevel on my Genga Gisshin 240mm gyuto today at work and my first impressions are:



    - easy to do (on a 4000 shapton)

    - the "feel" of passing the blade through peppers,etc. was slowed to a small degree ....it was noticeable.

    - edge retention through a case of said peppers + case mushrooms+ herbs was pretty much the same as when I did not microbevel (I did have to steel after in order to slice into a pepper skin smoothly).

    I'm wondering if this is a good idea at all, any thoughts?

  2. #2

    JBroida's Avatar
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    what kind of angle did you use? what kind of pressure? How is the normal bevel sharpened?

  3. #3
    Senior Member Justin0505's Avatar
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    I've been messing with micro and compound bevels for awhile and i should probably have been more scientific and documented my angles better, but anecdotaly, I've found that the ratio/ difference in angles is very important. If your microbevel is too much greater (more obtuse) than the angle behind it, it can feel and perform like a much duller edge. I've put crazy thin edges on knives with too-obtuse micro bevels before and while they would pop hairs, they also failed the 3finger test and felt like fat virgins (thick and resistant) on product.

  4. #4
    It has been thinned slightly after the original edge (not sure of exact angles...slightly less than 12?). Microbevel was around 16 or 17 deg. approximately. Not much pressure on any of my sharpening unless I'm re-profileng a co-worker's knives....very light. It seems like it's doing what it's supposed to be doing (feels slightly thicker going through food) but needs to be steeled just as often. I'm just wondering if I should do this as I was under the impression that it would extend the life of the edge. I may just go back to to the stones and enjoy that "falling through food feeling" I love so much . P.S. John: Did you get my email concerning the konosuke #2 hold/deposit request? Please PM me or email me as I want to throw some funds your way.

  5. #5
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    I would imagine your knife isn't single bevel, otherwise known as asymmetrical I don't think you need a micro bevel. Plus it looks like the edge on your knife is pretty thick so I would say skip it. Usually when you have a bevel of about IDK... maybe an inch think or .75 inches at least its when micro bevels come into play at least in my knives. I don't know how correct I am on this but Jon or some other pro should chime in soon enough.

    Looks like you posted a second before I did. Just curious if the pic here is how your knife looks after it was sharpened?

  6. #6
    Quote Originally Posted by memorael View Post
    I would imagine your knife isn't single bevel, otherwise known as asymmetrical I don't think you need a micro bevel. Plus it looks like the edge on your knife is pretty thick so I would say skip it. Usually when you have a bevel of about IDK... maybe an inch think or .75 inches at least its when micro bevels come into play at least in my knives. I don't know how correct I am on this but Jon or some other pro should chime in soon enough.

    Looks like you posted a second before I did. Just curious if the pic here is how your knife looks after it was sharpened?
    Yes, although I've stoned it a 3-4 times since.

  7. #7

    JBroida's Avatar
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    got the e-mail... trying to clear out my 100+ messages in my inbox today... sorry if it takes me a bit to get back to you.

    on the microbevels, i think your knife is probably better without one in this case.

  8. #8
    Senior Member Cadillac J's Avatar
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    Quote Originally Posted by memorael View Post
    maybe an inch think or .75 inches at least its when micro bevels come into play at least in my knives.
    I agree, this is how it has been in my experience as well. The only knife I have a micro-bevel on is my Takeda, as it is so acute and thin behind the edge that it really needs one. However, I know some people swear by micro-bevels on most knives, but I just never had a need.

  9. #9
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    It depends on the way your edge is failing. If the edge is failing due to wear then it will not matter. If you have a wire edge, it will also not matter. If your edge is failing due to deformation or chipping/cracking, they the microbevel will make a significant difference. I only put a microbevel when I know the people that are using the knife are not going to be careful with a thin edge or if it is a single bevel. The Gesshin Ginga steel is tough and not prone to cracking and chipping. You'd have to thin that sucker quite a bit before it needs a micro.

  10. #10
    I think you guys are right on the money, thanks for the info, I really do appreciate it.

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