The Cold Working Tool Steel is essentially high carbon steel, which contains relatively low alloy additions of tungsten, manganese, chromium and molybdenum. These alloy additions increase harden ability, permitting oil quenching with less distortion than with the W series. The steel basically is high carbon steel; the alloy content contains tungsten, manganese, and chromium and molybdenum relatively low alloy steel. They consist of air-hardening and oil-hardening tool steels. The Cold Working Tool Steel is made for use in various industries.