"Passion" tungsten carbide slitting knife no ka ʻoihana lithium i hana ʻia e ka pauka tungsten carbide puʻupaʻa kiʻekiʻe a me ka pauka cobalt me ke ʻano metallurgy pauka. Ke hoʻohālikelike ʻia me ka pahi kila maʻamau, ʻoi aku ka ʻoi aku o ka paʻakikī o nā pahi TCT o Passion (HRA 89 a 93) a me ke kūpaʻa ʻana (3500 a 4000 Mpa). .