K72 urukurikirane rwa kane-jaw yigenga chuck ifata silindiri ngufi nuburyo bugufi buzengurutse, Imiterere ya cone ngufi irashobora kugabanywamo ubwoko bubiri ukurikije uburyo bwo guhuza inkoni yibikoresho byimashini: Ubwoko A (bufatanije na screw), Ubwoko C (gufunga gufunga), Ubwoko D (gukurura inkoni, gufunga ingamiya).
