VEVOR Air Hammer 3500 BPM 12 CFM Pneumatic Hammer Air Hammer Kit with 4 Chisels Pistol Grip Air Hammer High-Performance Air Hammer Widely used Easy to Install Wide Applications Premium Durability Chisel Shank Length: 4.7 inches / 120 mm,Power Source: Air Powered,Air Inlet: 1/4 NPT ...VEVOR Air Hammer 3500 BPM 12 CFM Pneumatic Hammer Air Hammer Kit with 4 Chisels Pistol Grip Air Hammer High-Performance Air Hammer Widely used Easy to Install Wide Applications Premium Durability Chisel Shank Length: 4.7 inches / 120 mm,Power Source: Air Powered,Air Inlet: 1/4 NPT,Chisel Shank Diameter: 0.401 inch / 10.18 mm (round shank),Item Model Number: WFH-1042,Air Pressure: 90PSI,Stroke Length: 2.76 inches / 70mm,Average Air Consumption: 12 CFM (No Load),Product Dimensions: 7.3 x 5.8 x 1.9 inch / 185 x 148 x 48 mm,Net Weight: 4.1 lbs / 1.85 kg,Blow per Minute: 3500 BPM