Rock drill is a kind of small rock drilling machine for mining and construction in the quarrying industry and construction industry. It has low air consumption, low noise, high efficiency, flexible operation and good economic effect. Able to drill holes of 20-24 mm in various rocks and buildings. Especially for drilling secondary crushing operations on marble and granite, it will become your handy tool Model: Y018 Rock Drill Weight: 18KG Total Length mm 550 Cylinder Diameter: 58MM Rock Drill Piston Stroke: 45MM Impact Frequency is greater than or equal to 31hz Gas consumption is less than or equal to 22.6l/s Rock drill inner diameter: 19mm Water pipe inner diameter: 8mm rock drill brazing tail size 22*108mm Working air pressure MPa 0.4-0.63 Rock drill impact energy J ≥22 Impact frequency Hz ≥32 Air consumption l/s ≤20