1.Spindle ifata ibyuma bisobanutse neza, ibyerekezo bihanitse byerekeranye no gufata imipira ihanitse yohereza imipira, imikorere myiza ikora neza, ihagaze neza.
2.Ibikoresho byimashini iyobora ibyuma bidashobora kwangirika kandi nyuma yo kuzimya amajwi, ubukana bwa HRC45 hejuru, birashobora kwemeza
igihe kirekire kirambye cyo gutunganya neza.