Seti zomangira ndizofunikira pamakina osiyanasiyana ndi mainjiniya, zomwe zimagwira ntchito yofunika kwambiri poteteza zida zozungulira kapena zotsetsereka ku shaft. Zomangira zathu za seti zidapangidwa mwaluso kuti zipereke kudalirika kwapadera komanso kulimba, kuonetsetsa kuti zikuyenda mokhazikika m'malo ovuta. Poyang'ana uinjiniya wolondola, zomangira zathu zimakhala zogwira mwamphamvu komanso zolimba, zomwe zimawapangitsa kukhala abwino kwa mafakitale monga makina, magalimoto, zamagetsi, ndi zina zambiri. Kaya ndi chitsulo cha kaboni, chitsulo chosapanga dzimbiri, mkuwa, kapena chitsulo cha aloyi, zomangira zathu zosiyanasiyana zimakwaniritsa zofunika zosiyanasiyana, kulonjeza kugwira ntchito kwapamwamba komanso moyo wautali. Sankhani zomangira zathu zamtundu wokhazikika komanso kukhazikika kosasunthika pamisonkhano yanu.