Air Leg & Handheld Rock Drilling Machine : Y19A Weight 19kgs Overall Dimension 600x534x157mm Cylinder Dia. 65mm Stroke 54mm Working Pressure 0,4~0,5Mpa Impact Frequency 28~35Hz Air Consumption 37~43L/s Impact Energy 28~40J Air Hose Inside Dia. 19mm Water Hose Inside Dia. 13mm Drill Bits Dia. 32~42mm Max. Drilling Depth 5M Drilling Rotation 180~200rpm Drilling Rod Size H22 x 108mm Air Leg Type:FT100 Length 1312mm Stroke 810mm Cylinder Dia. 52mm Weight 11kgs