In some dry areas such as the countries in Africa, Middle East, Asia and South America, the supply of potable and irrigation water still mainly depends on surface water, which is apt to dry up during dry season. Meanwhile, ground water can stably supply the water through the year disregarding the season. As the demand of groundwater development in the above areas quite enhances, the operation of our water well drill rig with high mobility is very active. Our truck mounted drill rigs with supply records more than 200 units to those countries have been evaluated with a reputation of its better operability and high durability.