The hssannular cutter has specifications of Φ12-100mm and 30, 50, 75, or 100mm DOC. It is used for manufacturing, construction, shipbuilding, the automobile industry, and aircraft manufacture to cut holes into steel, cast iron, copper, aluminum, and FRP in either sheet or tubular forms. Suitable for all types of mag drill e.g. Nitto, Hougen, Alfra, Rotabroach, and BDS, etc.............