DescriptionTool Sharpening Workshop Man and Supply area. The drill steels from underground are bought up from underground in special carry wagons. They are reshaped and sharpened. The drill steels are hollow for water to be injected into the holes for cooling and flushing the chippings aout as well as dust suspression.RightsPublic DomainCollectionReginald O'BrienSubjectMiningMining Sites