Simbi oiri sefa wrench kits inowanzoshandiswa kutsiva mafuta mafirita painjini dzemotokari. Iyi kit inowanzo sanganisira chipanera chakagadzirwa chinogona kushandiswa kusunungura uye kuisa mafuta sefa. Iyo simbi inoita kuti chipanera chive chakasimba uye chakasimba zvakakwana kuti chigone kubata nenyaya yekuti mafirita emafuta anowanzoda simba rekutendeuka. Aya makiti anowanzo gadzirwa zvakanaka kuti aenderane nehukuru hwakasiyana uye marudzi emasefa emafuta, zvichiita shanduko yefirita kuve nyore uye nekukurumidza.
Zvimiro zvesimbi mafuta sefa wrench kits zvinowanzo zvinosanganisira: