ʻO ka ʻōnaehana ʻokiʻoki BK2 kahi ʻōnaehana ʻoki kiʻekiʻe (hoʻokahi papa / ʻāpana liʻiliʻi) i hoʻohana nui ʻia i loko o ke kaʻa kaʻa, hoʻolaha, ʻaʻahu, nā lako, a me nā mea hana.Hiki ke hoʻohana pololei ʻia no ka ʻoki piha ʻana, ka ʻoki ʻana i ka hapalua, ke kahakaha ʻana, ka ʻokiʻoki, ka ʻoki ʻana.Hāʻawi kēia ʻōnaehana ʻokiʻoki i kahi koho maikaʻi loa no nā ʻoihana like ʻole me ka hana kiʻekiʻe a me ka maʻalahi.