Tlhahisong ea indasteri ea sejoale-joale le bophelong ba letsatsi le letsatsi, li-screw li nyane empa li bapala karolo ea bohlokoa haholo. Li-screw tsa tšepe e sa ruseng e se e le khetho ea pele bakeng sa litlhoko tsa ho kenya liindastering tse fapaneng ka lebaka la ho hanyetsa ha tsona mafome hantle, matla a phahameng le bophelo bo bolelele ba tšebeletso. Ebang ke kaho, tlhahiso ea likoloi, lisebelisoa tsa elektroniki, kapa mekhabiso ea lehae, li-screw tsa tšepe e sa ruseng li ka fana ka litharollo tsa khokahano tse tsitsitseng le tse tšepahalang ho fihlela litlhoko tse thata maemong a fapaneng.