Deburring of welds and holes, to make oil canals in narrow places.Application areas encompass machining cast iron, cast steel, carbon steel, alloy steel, stainless steel, hardened steel, copper and aluminium.DIN: KUD.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.Number of teeth is also indicated in addition to the type of cut for each rotary burr.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.