This type of drilling rig generally adopts a hydraulic crawler-type telescopic chassis, a self-lifting and foldable drill mast, a telescopic drill pipe, automatic detection and adjustment of verticality, digital display of hole depth, etc. The whole machine generally adopts hydraulic pilot control and load sensing.  It has the characteristics of light operation and comfort.  The main and auxiliary winches can be used in various situations on the construction site.  This type of drilling rig is used with different drilling tools and is suitable for dry (short spiral) or wet (rotary bucket) and rock formation (core drill) drilling operations. It can also be equipped with a long auger, underground diaphragm wall grab, and vibrating piling hammer.  etc., to achieve a variety of functions, mainly used in municipal construction, highway bridges, industrial and civil buildings,  wall diaphragm grab, water conservancy, anti-seepage slope protection and other basic construction.