... water well drilling rig Drilling depth: 300m End hole caliber: 500-75mm Drill rod caliber: 50mm Drilling angle: 90-75 KDY-300 Diamond Core Drilling ... Applications: 1.Construction drilling of the projects e.g. prospection, railway, road, port, bridge, water conservancy and hydropower ... case and shifting structure.Technological Data of Drilling Rigs TypeKDY-300Drilling depth(m)300Drilling rod diameter(mm ...