... 2,Utility patent 3,Widely used 4,Full hydraulic chuck Drilling Machine(HGY-1500T) Brief introduction: 1.32 years ... are performed by the hydraulic system. Use: for geotechnical investigation, exploring, prospecting, water well drilling;Widely used in the ... diameter diamond core deep hole drilling, etc. Technological Data of Drilling Rigs ModelHGY-1500T Drilling MachineDrilling depth( m)1500~1200Rod ...