... anchor drilling when the main shaft connect with drill rod /drill pipe, casing, also with casing-followed ... Technical parameter: Hole Diameter (mm):Φ150-Φ250Hole Depth (m):120-80Rod Diameter (mm):Φ89,Φ102,Φ114Rod Angle (°): ... 24,30,45,60,70,90Output Torque (N.m):6500Stroke of Power Head (mm):3400Stroke of Slide ... Power Head (kN):33Feeding Speed of Power Head (m/min):0-2timing,11.5,29.5Input Power ( ...