He tino māmā te tautoko o te taputapu tirotiro waka. Haunga te tino tika o te poraka anaro i ngā wāhanga katoa o te taputapu tirotiro waka, ka whakamanahia te teitei o ētahi atu wāhanga kia ±0.01MM te tāpiri, te tango rānei, ā, ka taea te tāpiri, te tango rānei i te āhua o te 0.1mm. I roto i te whānuitanga o te wāhanga, he tino māmā hoki te hanganga o te wāhanga, he wāhanga tautoko māmā. I mua i te tukatuka, ka whakatauhia tuatahitia te rauemi o te rauemi e haere mai ana. He mea hanga te tautoko tautoko ki te maitai me te konumohe. E ai ki te hua a te kiritaki, Tīpakohia te turanga tautoko o ngā rauemi rerekē, whakatauhia tuatahitia ngā rahinga o te rauemi e haere mai ana i te wā tukatuka, ā, mēnā he 0.3~0.5MM te tawhiti o te maitai.

Ka tīmata te mīhini mira ki te poka kōhao. Hei whakahaere i te tukatuka i muri mai, me patu te nohoanga tautoko o te maitai ki te pūwāhi tohutoro. Me tū te kōhao titi o te kōhao matapo ki tōna tūranga. Ka tukatukahia e te mīhini mira te kōhao titi me te kōhao tīwiri, ā, ka tukuna te maimoatanga wera i muri i te otinga o te pato. Ko te pakeke he HRC45. °C~48°C, kāore ngā wāhanga paerewa o te nohoanga tautoko i tonoa i te mākete whānui i whakapakeketia. Hei whakaaro ki te roa o te mahi o ngā wāhanga, ka whakapakeketia ngā wāhanga maitai katoa o ngā taputapu tirotiro waka matotoru-rui. Kia oti te maimoatanga wera, me huri pai te teitei o te nohoanga tautoko ki te ±0.01MM, ko te āhua he ±0.1MM, kua whakapikohia te mata tautoko, kua whakairohia te tapahi waea me te miihini NC. Kia oti ngā tukanga katoa, ka tino pai te tango i ngā pakaru chamfer. Ka tukatukahia te tapanga kore taputapu tirotiro waka.