Ma muli o kona ʻano ʻano kūʻokoʻa nui, hoʻohana nui ʻia nā niho carbide cemented i ka ʻoihana eli lanahu. Niho pōkā pihi carbide carbide hemisphere niho carbide sima niho palahalaha niho wili niho quincunx niho pōʻai Nā niho tungsten carbide