Ibikoresho byo hasi bya spiral ni ubwoko bwibikoresho byabugenewe kugirango bikore imitwaro iremereye kandi bitange imikorere myiza, bigatuma bikenerwa cyane cyane mubikorwa biremereye nkibivangwa na beto.
Ibikoresho bya spiral bevel byatoranijwe kubivanga bya beto bitewe nubushobozi bwabo bwo gutwara imitwaro iremereye, gutanga imikorere myiza kandi neza, kandi bitanga ubuzima burebure hamwe no kubungabunga bike. Ibi biranga nibyingenzi mumikorere yizewe kandi inoze yibikoresho byubwubatsi buremereye nkibivanga beto.