YT24 hand-held air-leg rock drill is rock-drilling equipment with high efficiency. It is widely used in rock drilling. It's very important to coal mine, railway, traffic, water conservancy and so on. According to the different space, it can be used with FT140BD short air-leg and FT140B long air-leg. YT24 Rock Drill 1. Weight:24Kg 2. Length:678mm 3. Cylinder Diameter:70mm 4. Piston Stroke:70mm 5.Working Air Pressure:0.4~0.63Mpa 6.Impact Frequency:≥31HZ 7.Air Consumption:≤66.7L/S 8. Air Pipe Inner Dia:19mm 9. Water Pipe Inner Dia:13mm 10 Bore Size:34~42mm 11. Drill Shank Specification:22*108mm 12.Rock Drill Hole Depth:5m