Y24 type handheld rock drill is widely used for dry drilling in the medium and hard rocks (f=8-18). It's suitable for the drilling works in the surface mine, quarries for boulder blasting or any other dry drilling works. Product Specifications Weight 24kgs Length 604mm Cylinder Dia. 70mm Stroke 70mm Working Pressure 0.4~0.63Mpa Water Pressure 0.3Mpa Impact Frequency ¡Ã27Hz Air Consumption ¡Ã55L/s Air Hose Inside Dia. 19mm Water Hose Inside Dia. 13mm Drill Bits Dia. 34~42mm Max. Drilling Depth 5M Drilling Rod Size H22 x 108mm Oil Feeder Type: FY200B Capacity 200ml Weight 1.20kgs