Iyi miterere yimashini ishushanya ubwoko butatu bwikigereranyo, uruziga muburyo bubiri bwo hagatiUmwanya uri munsi yumuzingi ugenda uhagaritse unyuze mu nzoka ya screw na nyina wa silik, Byombi hepfoIbizunguruka bizunguruka binyuze mubikoresho bigabanya ibyuma bisohoka hamwe na moteri yo hepfo Gear mesh, kugirango itange torque yaUrupapuro. Imashini ibangamira ni uko kugorora isahani yanyuma bisaba gukoresha ibindi bikoresho.