... to improve working environmentTechnical Specifications ModelMD-60AHole diameter(mm)Φ90-Φ185Hole depth(m)50-80Rod diameter(mm)Φ73,Φ89Hole ... Angle(°)10~90Output Rotary speed of Power head(N·m)12, ... 25,45,60,100,125Output torque of Power head(r/min)2500Stroke ... equipment. Technical data do not consider power losses. MD-60 A drilling rig