Hydraulically Operated Drilling Machine is provided with inbuilt easy belt tensioning arrangement and easy and guided head up down jacking screw arrangement. The Drilling Machine is available in robust box type design and ensures drilling with almost no deflection and vibration. The Drilling Machine has mounting provision for multi spindle head. The Drilling Machine has easily accessible limit switch dogs and control elements. The Drilling Machine functions with adjustable rapid feed stroke and features rigid spindle and guide bar design. Hydraulically Operated Drilling Machine ensures no drop down of spindle at machine off.