He wāhanga whatu motuhake te whakaata parahi, e whakamahia ana i roto i te hangarau taiaho, ā, ko tōna rauemi pūtake he parahi, he koranu parahi rānei. Ka whakaatahia e te whakaata parahi te hihi taiaho mā roto i tōna mata whakaata nui hei ārahi, hei arotahi, hei whakarerekē rānei i te ahunga o te hihi taiaho. Nā te mea he nui te kawe wera, he pai ngā āhuatanga miihini me te ātete ki te waikura, he painga motuhake te whakamahinga o te parahi i roto i ngā pūnaha taiaho.
E 20 tau te roangaru e arotahi ana ki te whakarato i ngā hua whatu tino tika.