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Tiny edge nicks due to holes in blade

Sat Nov 10, 2012 3:32 pm

Since I got an Edge Pro sharpener, I have taken to examining my knife edges with a high-power loupe.
I see a few tiny nicks in the edge like this:
hole1.jpg
(19.79 KiB) Not downloaded yet

For these, I blamed ANOTHER PERSON who uses the kitchen, and probably, I guessed,
hacked frozen foods, or used the knives to cut wire.
But now I think the nicks are due to air pockets or small flaws in the steel.
For example, see below: the small hole in the steel will be a nick after the next sharpening.
hole2.jpg
(16.41 KiB) Not downloaded yet

The holes resemble pin-holes: one of the two holes below goes right through the blade.
hole3.jpg
(15.48 KiB) Not downloaded yet

These pictures are of a MAC MTH-80 that I've had a couple of years. I can see maybe 25 of these pin-prick holes in the blade. I can see similar (but fewer) holes in the blades of two japanese petty knives I have. I guess these 3 knives are VG10 or similar. My carbon Sabatier Trumpet has no such holes.

Are the holes manufacturing flaws which perhaps are inevitable with this type of steel.
Or is it a type of corrosion?
I like to wash and dry the knives soon after use.

Mark Horridge



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Re: Tiny edge nicks due to holes in blade

Sat Nov 10, 2012 5:06 pm

Wow, never seen anything like that before!! Then again, I'm not using a high power Loupe, either. Interested to follow this one!

Re: Tiny edge nicks due to holes in blade

Sat Nov 10, 2012 6:27 pm

.....mmmm....that looks like blade steel defect to me - I would contact the seller & request a refund/swopout....???


:)
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