... ,handy use and little air consumption. 6 hand-hold rock drill is a tool for the secondary blasting in quarry ... reasonable structure,handy use and little air consumption. Hand-hold rock drill, specificationsModelWeightkgLengthmmCyinder Dia.×StrokemmWorking pressureMPaImpact energyJImpact ferquencyHZAir comsumptionI/sYO151555058×450 ... held drill,hand drill,jack hammer drill ,hand hold rock drill Y018