He mata o te tāra hurihuri, he mea hanga mai i te maitai konupora 65Mn, he mea whakapakari, he mea matotoru hoki

He taputapu whakarewa te mata o te ngaki whenua i hangaia mō te mahi ahuwhenua, e whakamahia ana i roto i ngā ngaki whenua hurihuri. Ko tana mahi matua he wawahi i te oneone, te tango i ngā taru, me te ngaki i te whenua. I runga i ngā rerekētanga hanganga, ka taea te whakarōpū hei maripi ngaki whenua āhua-C me te maripi ngaki whenua āhua-L. Ko te rauemi he maitai motuhake 65Mn, 60Si2Mn rānei, me te pakeke o te HRC 42-48. He ātete nui hoki ki te kakahu me te ātete ki te pānga.