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I have been very successful in learning the T-7 for mostly knife sharpening and ran into the weirdest result.  I had reduced a bolster on an older knife and started to work on the blade.  After the third pass on the second side the edge literally "shredded" to strands that I have never seen before.  I suspect that it is a metal characteristic, but wonder if it might be my doing?

Has anyone had this happen?

Thanks,

Skip Elliott