The rock drill is a kind of high efficiency air leg rock drill machinery. it is mainly used for blasting holes and other drilling works in a quarries, railway construction, water conservancy construction and defence project facility. It is suitable for drilling and blasting under various of rocks at any direction angles.blast hole dia is 34-42mm,drill hole depth is 5 m. this machine may match with Model FT160BD short air leg or Model FT160BC long air leg. This machine has transparent surface of FY200B oil reservoir to regulate oil. Specification: Weight ˜ 26 kg Length 661mm Cylinder dia 80mm Piston stroke 60mm Air pressure 0.4- 0.63MPa Impact frequencey = 37 Hz Air consumption =81L/S Air pipe (inner dia ) 25mm Water pipe (inner dia ) 13mm