Norton Sharpening Stone Oil, 4 1/2 oz (XB1). Store SKU is StoneOil. Official Norton sharpening catalog lists the 4-1/2 oz bottle as this item, part 61463687760: highly refined lubricating oil formulated for sharpening stones; will not load or gum-up stones; may be used around food-preparation operations; meets U.S. Pharmacopeia standards for mineral oil purity. Official use: Crystolon, India, and Arkansas oil stones. Specs from Norton's sharpening stones catalog on nortonabrasives.com.

The bottle we put next to the oil stones. Mineral oil, 4 1/2 oz.