Isingeniso: Izinsimbi ze-Intergal drill ziyizinto ezibalulekile emkhakheni wemishini yobunjiniyela nokwakha, ikakhulukazi emishinini yokumba idwala. Zidlala indima ebalulekile ekuthuthukiseni ukusebenza kahle kokubhola nokusebenza konke kwemishini enjalo. Kulesi sihloko, sizohlola emhlabeni wensimbi yokubhola ngaphakathi, sihlola ukubaluleka kwazo, izici, nezinzuzo endodeni