Z3040*13 RADIAL DRILLING MACHINE Z3040*13 RADIAL DRILLING MACHINE Features: 1.Adopt the hydraulic primary variable speed ... handle control, convenient operation. 3.Spindle box, rocker arm, internal and external column adopt tetrapod clamping institutions by hydraulic ... driving, clamping reliable. 4.Rocker arm guide rail,column round the surface, spindle,spindle sleeve ...