Loaʻa i ka ʻōnaehana HK flip-up kahi hana pale pālua. Ke weheʻia ka puka puka i kahi kihi o 60 ° ± 15 ° aʻoi aʻe paha, hiki iā ia ke lele i kēlā me kēia kūlana, wehe maʻalahi a pani mālie, e hiki ai ke komo i nā mea kiʻekiʻe. Hiki ke wehe koke ia me ka ʻole o nā mea hana.