Hitachi WR16SA 4.2 Amp 1/2-Inch Electric Impact Wrench  (Discontinued by Manufacturer) Powerful tightening strength optimized to produce 265-feet per pound of torque 4.2-amp, 480-watt motor handles stubborn fasteners Forward/reverse rocker switch quickly changes fastening direction Soft elastomer for improved durability and a non-slip grip Comes with a 5-year limited warranty 3,190-Inch Pound or torque 6.2 Pound 4.2 Amp Large Rocker switch IDI technology