1. Ngomshini osanda kuthengwa we-rock drill, ngenxa yezinyathelo zokuvikela zokupakisha, kuzoba khona amafutha avimbela ukugqwala ngaphakathi.Qiniseka ukuthi uyayiqaqa futhi uyisuse ngaphambi kokuyisebenzisa, futhi gcoba okokugcoba kuzo zonke izingxenye ezihambayo lapho ulayisha kabusha.Ngaphambi kokuthi umsebenzi uvule isivivinyo somoya esincane, noma ngabe...
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