The DEWALT 18V XR Brushless ½’’ High Torque Wrench is a powerful heavy duty yet ultra-compact tool. The Brushless motor has been designed to run cooler and more efficiently, enabling for more power to be delivered during application, resulting in less wear and an increase in longevity of the tool. The high power Brushless motor has a max torque of up to 447 Nm and breakaway of up to 813Nm, which ensures heavier tasks are completed quickly. The 3 speed motor settings, including Precision Wrench Control offers greater control. In forward the Impact wrench pauses before impact to prevent overtightening, in reverse the impact wrench lowers the speed when the fastener is loose to help prevent run off.