A Lansky medium alumina-oxide hone, 280 grit. Lansky's Professional System lists the Medium Green Hone at 280 grit for sharpening and less frequent touch-ups. Grit article: included in every Lansky Sharpening System except Diamond and Arkansas; smooths deep scratches from coarse hones. Clean alumina with oil when clogged.
Green medium stone. Most of the work after the coarse, before fine or ceramic.
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