Telescopic pipe cutter for copper, aluminum and steel pipes between 3 and 35 mm (1/8 and 1.3/8 in). body made with magnesium. phosphated and enamelled surface. shaft and screws made with steel din 1651. interchangeable cutting wheel made with steel din 17230: 321511. hardness of the cutting wheel of 56-57 hrc. commercialization in industrial packaging