Cerax

Cerax is the best-known brand of the Suehiro company. The stones sold under this name have a medium-hard bond and are particularly suitable for high-alloy tool steel s but also for low-alloy carbon steel s. The coarse-grained alloy constituents (e.g. chromium and vanadium) in tool steel s require a stone that wears slowly. The stone with the base has extra stability and is easy to store. A Nagura stone is used for cleaning and unclogging the surface of the stone and for creating a fine polishing paste. Before use, soak the stones in water for at least 10 minutes, but do not store them in water permanently. White aluminium oxide abrasive.