hand-hold rock drill, hand hammer drilllow weight,reasonable structure,handy use and little air consumption. 6 hand-hold rock drill ... and granite,it has characteristic of low weight,reasonable structure,handy use and little air consumption. Hand-hold rock drill, specificationsModelWeightkgLengthmmCyinder ... -0.63≥30≥23≤47 hand held drill,hand drill,jack hammer drill ,hand hold rock drill Y018