Proxxon mf70 240v milling machine proxxon 27116 this 3 piece tungsten milling cutter set is ideal for use with the proxxon mf 70 milling machine these double flute cutters are made of solid tungsten for clockwise cutting the fishtail profile ensures cutting to the centre but allows boring toousable on cast iron hardened cast iron steel cast steel brass aluminium and even glass plastics and carbon fibrethe set includes three cutters of 1mm 2mm and 3mm diameter supplied in a wood