Combination oilstone has 100 grit on one face for repairing steel cutting edges and 320 grit on the;Aluminum oxide produces durable, smooth-cutting edges, and is preferred for close tolerances;Prefilled with oil to allow lubricant to stay on surface during sharpening;1 x 8 x 2 inch (H x W x D) size makes this stone suitable for use as a bench sharpener for knives an;Oilstone is more durable and harder than a waterstone

• Norton 8 India Alundum

Norton 8 India AlundumNorton