1,Dimension( Length*width*hight) is 10720*1900*2970 2,Drill depth(pushing one time) is2800/3700/4600 HT81A Wheel type total hydraulic digging drill machine HT81A wheel type digging drill is mainly used in metal mine, coloured metal, water and electricity, railway, highway for building tunnel. It is single boom type, used total hydraulic system, with automatic and lock –prof components, with high ...