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I Forge Iron

How do you get a "Toothy" edge?


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I apologize if this has been discussed before.  I did some searches of IFI looking for it but maybe I didn't use the right terms to find it.  I recently acquired a new Benchmade pocket knife.  The factory edge on it isn't just sharp, it's toothy.  The factory edge will start cutting slick, thin, and unsupported material as though it has teeth grabbing the material.  

The final bevels aren't polished either.  I don't know what grit they took it to but I'm guessing it's coarser than 600. There are visible scratches across the bevel.

I haven't messed with sharpening this knife, but I have tried to emulate this edge on other knives without success.  I can get a wire edge to form at coarse grits, but I haven't figured out how to remove it without either polishing the edge, or stropping my way to dull spots. 

I'm using a 2x72 belt grinder, as well as an 8" stationary grinder using the "razor sharp" laminated paper wheels.  Using the paper wheels I can reliably get a polished razor edge that pops hair off, but it's a slick edge that won't "grab". 

Thanks in advance!

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