This 36V MultiVolt High Torque 1/2" Impact Wrench (model - WR36DGQ4) delivers best in class 1,033 ft-lbs tightening torque, 1,475 ft-lbs nut busting torque, up to 1,500 RPM no load speed and up to 2,500 BPM. This impact wrench offers powerful torque thanks to the brushless motor and the newly designed hammering mechanism. For ease of use, it's equipped with the auto-stop function to prevent over-tightening of bits and the auto-slow function to reduce dropped fasteners. The square drive friction ring provides a strong grip on sockets and makes for quick and easy replacement. It's highly durable thanks to the IP56 rating for water and dust resistance. There's also a battery damping system that absorbs vibration, which improves the life of the battery terminal. Upgrade your power tool line - up and tackle the toughest jobs.