YT24-type air-leg rock drill YT24 Air-leg rock drill type is the relatively early styling products, compare it with the same type of rock drill: light weight, low noise, high efficiency, good economic effect and the like. It is best suited for medium and small mines to use. Model Weight KG commander mm Bore × Stroke mm Working pressure MPa impact energy J Impact Frequency HZ Air consumption I / s YT24 24 678 70 * 70 0.4-0.63 ≥75 ≥31 ≤66.7