cralwer mini SPT testing drilling rig with capacity of 100m/nq capacity, suitable for soil testing, SPT testing Mini Crawler Drilling Rig.Suitabble for diamond core drilling, carbide core drilling, SPT test drilling, small water well drilling, hydro exploration drilling.Drilling Capacity 1) Hole diameter 75, 91,110,130,150 mm2) Drilling depth: 150,100,70,50,30 m2. Rod Dia. 42 mm3. Drilling Angle ...