For some materials, a “toothy” edge is a better “cutter.” For EDC’s, I use 1000’s as an upper limit, with a light polish to ease the way.
Think of the cutting operation at the microscopic point where the apex meets the material. If the material is tough and fibrous, a smooth edge will tend to glide right over the point of contact. An edge with micro-serrations (a toothy edge) will pick up minute fibers and easily tear them apart, but the rough surface that comes with the toothy edge also produces friction that makes slicing difficult. The optimum compromise is a polished bevel with a toothy edge. As for me, I sharpen to 800 or 1000, then put on a light polish with one of the micro-fine ceramics, 1.4 or 0.6 microns. Most of the guys on this forum prefer to use a soft strop (leather or kangaroo) with 5 or 3.5 micron diamond paste, but at a lesser degrees less angle.
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