Hana ʻia ʻo Zund blade Z31 i ka pauka kila tungsten maikaʻi loa. ʻO ke kila Tungsten (paʻakikī paʻakikī) he mau waiwai maikaʻi loa e like me ka paʻakikī kiʻekiʻe, ke kūpaʻa aʻaʻahu, ka ikaika a me ka paʻakikī, ka wela a me ka pale ʻana i ka corrosion, ʻoi aku kona paʻakikī kiʻekiʻe a me ke kūpaʻa. Hoʻohana nui ʻia ʻo Carbide e like me nā mea hana, e like me ka hoʻohuli ʻana i nā mea hana, nā mea ʻoki wili, nā planers, drills, boring tools, etc.