Sieg Milling Machine for sale in UK | View 14 bargains. 4,6,8,10,12mm End Mill Bits Set, 4 Flute End Mills . 4,6,8,10,12mm end mill bits set, 4 flute end mills. Sieg u2 universal milling, drilling & grinding machine ideal for home garage or small workshop use. please note: this lathe is not to confused with the cheaper c4 older model sieg lathe.