The Liberon Honing Oil is ideal for cleaning and reviving oilstones that have become dirty or clogged with greasy oil. Liberon Honing Oil is specially formulated to clean and lubricate the oilstone while sharpening tools. Performance: - Lubricant for tool sharpening on oilstones - Cleans dirty stones - Reduces clogging of the stone from metal particles - Helps to produce sharper tools Important information: Only use on flat static oilstones. Do not use on any mechanical sharpening machinery. Specification Coverage: 1 litre = 8-12m. Size: 250ml. Drying Time: 3-4 Hours.