New Niolox Sizes Available 16 March 2016 David We have now expanded our Niolox knife making steel to include thickness' up to 6.5mm thick. Niolox is a corrosion resistant tool steel which is excellent for knife making. Due to the Niobium in the steel, the grain structure is very fine, meaning you can hold a very sharp edge with excellent wear resistance! If you would like to know more about Niolox please get in touch. To view the expanded range, why not visit our online shop? The image used above is a friction folder that was manufactured by one of our customers using 4.2mm Niolox steel.