Okokuqala, isixhobo sinokwahlulwa sibe ziindidi ezintlanu ngokwendlela yokwenziwa komphezulu womsebenzi: 1. Ukutshiza iintlobo ngeentlobo zezixhobo zomhlaba zangaphandle, kubandakanywa izixhobo zokuguqula, iimela zokucwangcisa, abasiki bemilling, ibroach yangaphandle kunye nefayile;2. Izixhobo zokulungisa umngxuma, kubandakanywa i-drill, i-ream...
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