SPECIFICATION Chisel Shank Opening : 0.401 inch (10.2 mm)  Bore Diameter : 9/16 inch (14.3 mm) Stroke Length : 1-3/8 inch (35 mm)  Blows Per Minute : 2850 B.P.M Operating Air Pressure : 90 PSI (6.2 bar) Avg. Air Cons. : 6.4 cfm (180 l/min) Net Weight : 1.9 lbs (0.86 kgs) Min. Hose Size : 3/8 inch (10 mm) Rivet Size : 1/8 Steel Rivet Size : 5 inch (32 mm)