I roto i nga taputapu tapahi, ko te carbide cimented te nuinga o te whakamahi hei taputapu taputapu tapahi, penei i te taputapu huri, te kaitapa mira, te mahere, te moka drill, te taputapu hoha, me etahi atu ka whakamahia mo te tapahi i te rino, te whakarewa kore-ferrous, te kirihou, te muka matū, graphite, karaihe, kohatu me te rino noa, me te mo te cuttin...
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