We are supplying here the Addison Cutting Tools in various types that perform different functions. The offered High-speed steel taps are ideal for softer materials, including soft steels, cast iron (especially when subjected to nitride and oxide treatments), copper, magnesium, and alloy steels below 32Rc. Standard High-Speed Steel taps are manufactured with a geometry that is not optimum for a specific material but generally will work over a wide range of materials. High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials. The Addison Cutting Tools are very durable.