Robust and powerful, reversible air impact wrench specifically designed for workshop applicationsHigh torque action with three forward steps (Max Torque: 120/180/331 ft/lb) and reverse (Max Reverse Torque: 346 ft/lb)Housing is manufactured in sound absorbent, extra lightweight composite material for noise reduction (Sound Level: 94.0 dB.)Twin hammer mechanism for increased torque, greater reliability and reduced vibration (Vibration: 3.80 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.