Please contact with Mandy: digswordland@gmail.com The rock drill is a kind of high efficiency air leg rock drill machine. It is mainly used for blasting holes and other drilling works in a quarries, railway construction, water conservancy construction and national defence project facility. When it is matched with Model FY250 Oil reservoir and Model FT160A or FT160B Air-leg, it is suitable for wet drilling under various of rocks at aclinic and incline orientation, it can also use in the trolley without Air-leg. Weight: 27 kg Outside dimension(L*W*H): 668*248*202mm Cylinder dia: 80mm Piston stroke: 60mm Impact energy: 75.5J Impact frequencey: 36.7Hz Air consumption: 83.3L/S Air pipe (inner dia): 25mm Water pipe (inner dia): 13mm Air pressure: 0.63MPa Water pressure: 0.3MPa Bore dia: 34-45mm Bore depth: 5m Shank dimensions(hex*length): 22*108+mm Model FY250B oil lubircator Weight: 1.2kg Oil capacity: 0.25L Air leg: FT160A FT160B Weight: 17kg 16 kg Llength: Max: 3006mm 2526mm Min: 1668mm 1428mm Propulsion stroke: 1338mm 1098 mm Axis thrust (max): 2000N 2000N