... economic,easy move 3.High efficiency 4.Hydraulic dri Portable water well drilling rig AKL-L-180 Features:(1)AKL-L-180 is a ... core drilling and geographical mapping;(4)Drilling of small gourting hole and blast hole Main technology parameters: Drill depth (m)180,150,120 ... ,90,70,30Drilling diameter75,91,110,130,150,300Maximum open hole caliber (mm)400End ...