Diamond File folds to 5" (130mm) to fit your pocket. Coarse 325 Grit, 45 Micron - 5/32" (4mm). Diamonds bite into any hardness of metal (steel or tungsten carbide) and work fast and in both directions – unlike a regular chainsaw file. Quickly sharpens all KA Tool chainsaw blades. Also excellent for hoof knives, straight and curved blades, glass and ceramics.
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