Introduction Mighty Seven M7 M7-NE443 1/2″ Drive Air Ratchet Wrench This M7 Ratchet Wrench has a 1/2″ square drive, with a free speed of 160rpm. Features: 1/2″ Square Drive Air Ratchet Wrench Specifications: Drive: 1/2″ Square Air requirement: 4CFM / 90PSI Inlet: 1/4″ Free speed: 160rpm Torque range: 10-55 ft-lb / 13.5-74Nm Max torque at 5 seconds: 100 ft-lb / 135.6Nm Sound pressure: 84dBA Vibration level: 4.4m/s Length: 280mm Weight: 1.3Kg