Mā te whakarewatanga tika ka tino tika te āhua o ngā hanganga, ka whakaiti i te tūponotanga o te rahunga i raro i te ahotea, ā, ka whakarei ake i te pono o te pūnaha whānui. Mā te whakamahinga o tēnei hangarau ka taea te hanga i ngā āhua uaua e uaua ana ki te whakatutuki i ngā tikanga hanga tuku iho. I te tipu haere tonu o te umanga hiko hau, ka nui haere te hiranga o te mahi a te kaikawe aorangi, ka whai wāhi ki te hurihanga pūngao whai hua me te pumau ake i roto i ngā otinga pūngao whakahou.
I a mātou e whakamahi ana i ngā taputapu tirotiro matatau pērā i te mīhini ine taunga-toru a Brown & Sharpe, te pokapū ine a Colin Begg P100/P65/P26, te taputapu porotaka Tiamana Marl, te whakamātautau taratara o Hapani, te Kaiwhakaahua Whatu, te pūwhakaata, te mīhini ine roa, me ētahi atu, kia tika ai, kia tino tika ai te tirotiro whakamutunga.