Nā mea kani

E hui me ka Dagger Fret Crowning File—i hoʻolālā ʻia e hāʻawi iā ʻoe i ka mana ʻoki kūʻokoʻa me kāna hoʻolālā DIA (Dual Integrated Arc). Mālama kēia mea hana i nā laina waena fret kūpono a me ka hoʻopau fret hoʻomaʻemaʻe. He ʻoi loa ka wehewehe ʻana i nā ʻaoʻao fret me ka ʻole o ka ʻoki ʻana, e loaʻa ana nā loiloi mai nā mea hoʻohana i kapa ʻia he "foolproof"!.