Te hanga aunoa o te Rererangi DIN Hiko, whakamahia te takai piauau hei whakaputa.
Ko te tapahi aunoa me te kohao poka, kotahi te mahi
Ko te matotoru rauemi he 0.8-1.0mm, 1.0-1.2mm, 1.2-1.5mm. Ko ia matotoru kotahi te miihini. Hanganga Torrist, ka taea e tetahi taha te neke me te whakatika i te whanui