Hand Tools Archive

Subject:
Re: Why? *PIC*
Response To:
Re: Why? ()

Winston
It's visible with the microscope and to the naked eye.

This is a (bevel down) blade after being used. The blade has been worn away enough that side to side scratches are gone.

This is the same blade after being sharpened, and with the extra pressure at the edge when working the back. There's still a bit of reflection at the edge because of the convexity there. (Although, I did manage to still get a sharp edge because of the extra pressure at the edge.)

For reference:
http://www.woodcentral.com/woodworking/forum/handtools.pl/page/3/md/read/id/495770/sbj/back-wear-bevel-up-vs-bevel-down/
http://www.woodcentral.com/woodworking/forum/handtools.pl/page/3/md/read/id/495675/sbj/success-with-applying-extra-pressure-near-the-edge/

I actually noticed this happening a while back and mentioned it in passing here maybe a year ago, but I didn't follow up on it back then.

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