... 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 90° ~ 75°4 Rotary ... . Power Diesel Engine 12.1 kw/2000 rpm mini crawler drilling machine for soil testing, SPT testing