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Thread: Wostenholm edge crumbling halfway through shave

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    Default Wostenholm edge crumbling halfway through shave

    I bough this razor awhile back, the restoration was by someone else.

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    I find it wont hold an edge when shaving. I think its because the bevel angle is to shallow, which I have calculated to be approx 18 degrees using 0.01mm verniers. I also have a nice, high quality, dissecting microscope that goes to 50X magnification and I can clearly see a difference in the edge between hanging hair sharp before shaving and after. I also have a Longlife razor, and others, that stay sharp throughout a shave and there is little difference to the edge from before and after a shave, so I'm sure its not my sharpening technique.

    Just wondering if anyone has had experience with Wolstenholm & sons blades and what bevel angle might suit them; thought I would ask before I go and completely stuff things up. (I am assuming that these old razors are like chisels, in that different bevel angles suite different makers and different steels)

    Thanks for your help.

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    Substance and outback like this.

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    At this point in time... gssixgun's Avatar
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    18 is steep not shallow for a razor 16 -17 is the target for SR's in general

    Tell us more about the honing system you are using
    Geezer, Substance and outback like this.
    "No amount of money spent on a Stone can ever replace the value of the time it takes learning to use it properly"
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    The First Cut is the Deepest! Magpie's Avatar
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    After getting a "restored" razor from a so called "professional" I am mighty quick to lean on the "overheated on the buffers" school of thought

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    I started by studying the blade under the microscope and found the bevels didnt meet in the top third of the edge. I used a single layer of tape as this is what the guy I bought the razor from did.
    I started with a "tam-o-shanter" whetstone and checked the bevels every 10 strokes or so until the bevels met. Then move to 10k waterstone until striations from whetstone were gone. Then moved (stropped) to kangaroo hide charged with flexcut compound till it was sharp! Finally stropped with cow hide strop till HHS.

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    Senior Member rodb's Avatar
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    Are the bevels even along the edge? Also try honing again without the pasted strop next time and see if it improves
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    At this point in time... gssixgun's Avatar
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    Quote Originally Posted by layingaloneinbed View Post
    I started by studying the blade under the microscope and found the bevels didnt meet in the top third of the edge. I used a single layer of tape as this is what the guy I bought the razor from did.
    I started with a "tam-o-shanter" whetstone and checked the bevels every 10 strokes or so until the bevels met.

    This makes me think it is more of a honing issue rather than anything else

    Quick and dirty test

    Use two layers of tape and see if it miraculously starts shaving after you repeat your honing regime
    Often time the Micro bevel will make it pop
    If it does then you KNOW you have some honing to do to correct the edge, if not then you still have more mystery to solve
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    "No amount of money spent on a Stone can ever replace the value of the time it takes learning to use it properly"
    Very Respectfully - Glen

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    Quote Originally Posted by gssixgun View Post
    This makes me think it is more of a honing issue rather than anything else

    Quick and dirty test

    Use two layers of tape and see if it miraculously starts shaving after you repeat your honing regime
    Often time the Micro bevel will make it pop
    If it does then you KNOW you have some honing to do to correct the edge, if not then you still have more mystery to solve
    Can't you just keep the micro bevel and hone with 2 layers of tape, always?

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    Senior Member Butzy's Avatar
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    Yeah, if Glen's technique does not work for you. I'm inclined to agree with Magpie. Depending on who you had restore it, is it possible that it was overheated (i.e. lost its hard) during the restoration process? This would lead to a very quickly degraded edge.
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    One man's opinion...

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    At this point in time... gssixgun's Avatar
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    Quote Originally Posted by Mikali View Post
    Can't you just keep the micro bevel and hone with 2 layers of tape, always?
    yes you can, that is always an option.
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    Maruka Shaman of West London JOB15's Avatar
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    Get the bevel just about set using soft, light strokes and then move on.

    I some times have edges fail half way through the shave on full hollows because im so used to honing heavier grinds.

    That's my thoughts.. Good luck
    Maruka Kingpin of England

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