Heavy Duty Twin Hammer 1" Air Impact Wrench Gun Long Shank 2300FT-LB HD 3 For. 1 Inch Square Drive (25.4mm) - 9 Inch Long Anvil Shank Speed Options: 3 Forward & 3 Reverse Maximum Torque Power: 2300 FT/LB - No-Load Speed: 4000RPM Bolt Capacity: 1-1/4 Inch - Includes 1-1/2 Inch (38mm) & 1-5/8 Inch (41mm) Air Inlet: 1/2 Inch NPT - Air Pressure: 90-115PSI - Air Consumption: 12-14CFM