Countersink and deburring tool with through hole which is ideal for long chip materials, such as aluminium and very effective on both hard and softwoods. Spoil is removed through centre of cutter to prevent damage to tool. HSS cobalt For ferrous and non-ferrous metals For synthetic materials and soft and hard woods Universal deburring and sink tool for all kind of borings. High standard cutting features guarantee a smooth surface without burrs- profile relief facilitates an easy regrind.