Application areas encompass machining cast iron, cast steel, carbon steel, alloy steel, stainless steel, hardened steel, copper and aluminium.DIN: WRC.Medium: for machining hard and/or tough materials under normal conditions.X-Cut: for hard and soft materials, produces short and blunt chips, runs smoothly even at low cutting speeds.A smaller diameter burr will have a finer cut than a larger diameter burr belonging to the same cut category, for example, medium-cut.Stock standard: X = yes.Indispensable tool, used in large number of industrial sectors including aviation, shipping, automotive and the chemical industry etc.