Ko te tikanga tongi ko te nuinga o te tongi parakore, te tongi waro, te kohuke me etahi atu.Ko te tongi parakore i roto i te tongi puhui, penei i te Urea he kino ki te mowhiti mowhiti, te kohao mate whakakai me te kohao o roto ka mau i te kohuke, no reira me kowhiri nga mea o te mowhiti mowhiti he kowiri tira X46Cr13.He nui te whanui o te whakakai tongi whakakai, he 3.0-6.0mm te whanui, na te nui o te whakarea waku, he uaua ki te tuku te poka.