1. Ko te mīhini he mea hanga nui mai i te pūnaha mekameka tuku ā-rohe, he pūnaha mekameka whakahurihuri tinana pounamu, he whatanga, he aratohu huri pounamu, me ētahi atu.
2. Ka hurihia aunoatia e te mīhini te whakahoromata, te tautuhi-ā-unoa, ā, ka wera te rauemi i roto i te pounamu i te wā e mahi ana, kāore e hiahiatia he pūtake wera hei tāpiri, kia tutuki ai ngā kaupapa penapena pūngao.
3. He mea hanga te tinana o te mīhini ki te rauemi SUS304, he huatau, he ngāwari hoki ki te whakamahi.