... machine. It is suitable for drilling large dia. hole and small dia. hole core drilling with diamond bit and carbide bit, also ... drilling, hydrogeology drilling, water well drilling and large dia. pile hole drilling. It has features of reasonable arrangement, good quality, light ... ×W×H)(mm)2920×1100×1840 XY-1000 Large Dia Hole Water Well Engineering Geology Drilling Spindle Type Of Core Drilling ...