hand-hold rock drill, hand hammer drilllow weight,reasonable structure,handy use and little air consumption. 6 hand-hold rock drill is a tool for the secondary blasting in quarry and especailly for rocking 20mm hose in marble and granite,it has characteristic of low weight,reasonable structure,handy use and little air consumption. Hand-hold rock drill, specificationsModelWeightkgLengthmmCyinder ...