Product Application: 1. Portable Rotary Water Drilling Rig Machine for the general exploration and investigation of solid mineral deposit, engineering geotectonic survey and concrete structure inspection holes. 2.Diamond drill bit, alloy drill bit and steel roller drill bit and so on are available for drilling according to different geological structures. 3.When the final holes are respectively 75mm and 46mm in diameter, the rated hole depths are separately 100m and 180m. The maximum of depth may not exceed 110% of that drilled in each hole. The maximum allowable hole diameter is 150 mm.