Delivers 450 RPM for maximum productivity Compact head design and recessed shift knob provide users with more access in tight spaces POWERSTATE brushless motor delivers maximum power and longer motor life REDLITHIUM-ION batteries deliver more work per charge over the life of the battery Variable speed metal trigger provides ultimate control of the tool On-board fuel gauge displays remaining run time for less downtime on the job Up to 47Nm of max torque A reinforced mechanism and steel yoke housing provide greater durability for the professional user REDLINK PLUS Intelligence prevents damage to the tool and battery due to overloading or overheating Can be used manually without engaging the tool's motor, Weight: 2.20462262 Pounds, Manufacturer: Milwaukee