Robust and powerful, reversible air impact wrench specifically designed for workshop applicationsHigh torque action with three forward steps (Max Torque: 285/390/685 ft/lb) and reverse (Max Reverse Torque: 700 ft/lb)Housing is manufactured in lightweight but hard wearing aluminum (Sound Level: 92.5 dB.)Twin hammer mechanism for increased torque, greater reliability and reduced vibration (Vibration: 22.45 m/s squared)Forward/reverse button for one handed operation and an ergonomically designed handle for better grip and insulation against vibration and cold air.