This Jillasan stone #555 similiar to Jillasan #777 is for fine jewellery polishing in precious metals. As an oil stone addition of a light paraffin oil helps to fine polish metal. Knife makers find no difference in performance compared to the higher cost Arkansas oil stone. Clean stone with kneadable eraser.
Polishes and hone knives, razor, carving knives, surgical blades to a smooth resistant free slicing.