Y19 jackhammer price Y19 handheld dual air-leg rock drill is mainly used for small quarry stonework development, coal, limestone and other small mining operations, mountain road in drilling and blasting, and construction of water conservancy. The machine is also suitable for secondary blasting and other construction and other aspects of large-scale mining drilling work. Model Y19 Weight 19KG captain 600mm bore × stroke mm 65 * 54 working pressure MPa0.4-0.5 impact energy ≥28J impact frequency HZ≥23 Air consumption I / s≤47