The universally usable carbon steel O1 has a high content of manganese, chromium and tungsten and thus convinces with very good machinability and polishability. This high-quality tool steel is often used as a cold work steel and is easy to form and sharpen. It produces a very good cutting edge, which also remains sharp for a comparatively long time. Since it is a non-stainless carbon steel, it should not be exposed to direct moisture for long periods of time.