This is not part of sharpening, but kind of Quality Assurance. Actual hair whittling. This is my own hair, it is thin Russian hair. After Green Rouge I able to whittle it, but you need to go against hair shell, holding it at the end (hair looks like palm-tree).
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After major polishing is done - 100 on each side, I focus on making edge even, to do passes changing sides. At this point I am trying to do this as gentle as possible, almost without pressure, carefully keeping position where very edge almost not touching the surface of the leather. This is final step.
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This is final stage, so after I polished each side I even the edge by polishing it changing sides. At that point I a trying to do easyer then on previous steps, almost without any pressure.
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After one 100 passes I change the side and do another 100 passes.
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After Green rouge is warmed. I start polishing edge. Starting from the side on which I have burr from previous step - so I continue to hold handle in the left arm as on previous step because I change direction of moves. I can not rely on burr any more so I just do 100 passes on one side. Important not to round the edge - no too much pressure and keep knife the way the very edge almost near leather surface almost not touching it.
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I am done with diamond stones. Now it is Green Rouge stage. I made myself sharpening device with leather stretched (not glued) to piece of wood. I cover leather with green rouge - chromium oxide to polish blade. But first I warm it under lamp and apply new layer of green rouge.
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After forming burr - I wash stone and change side. Burr on Extra fine is smaller, because abrasive is about 9 microns vs 45 microns on Coarse and 120 micron on Extra Extra Coarse.
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