The impulse 1" Classic Impact Wrench is designed for truck and heavy vehicle wheel removal and mounting as it tackles the most demanding heavy-duty tasks with power and ease. Equipped with a pin hammer design this robust impact wrench will deliver a maximum working torque of 1800 Nm / 1328 ft-lb with a max speed of up to 4000 RPM. The 3-speed control mechanism easily switches between clockwise and counter-clockwise rotational torque direction to suit your lug nut fastening needs. Compatible with MARTINS MMIWSS (Impact Boom - Mobile Impact Wrench Holder)