1. Square drive: 1" 2. Capacity bolt dia.: 1.77" / 45mm 3. Free speed: 3000r. P. M 4. Max torque: 2647ft-lb/ 3600N. M 5. Overall length: 24.61" / 625mm 6. Air Inlet: 1/ 2" 7. Air Hose: 1/ 2" 8. Net weight: 41.33lbs/ 18.70kgs 9. Packing: 2pcs