Masulani ndi kukanikiza pamanja, ntchito yosavuta komanso yachangu ndikupulumutsa nthawi yothinaKapangidwe ka zida pamphamvu yolimba yolimba.palibe kutsetsereka pamene ntchitoKubowola ndi kubowola kwa ratchet kungagwiritsidwe ntchitoChosavuta kuchotsa chobowola cha nati ndikusunga kulondola kwa dzenje lamkati.Amagwiritsidwa ntchito pobowola benchi, makina obowola ma radial mkono, kubowola ndi kubowola makina, ma lathes, makina amphero, kubowola maginito;ndi zina