This electric wrench kit features a high-efficiency brushless motor, delivering strong torque output with reduced heat and loss. The brushless design ensures longer service life, lower maintenance requirements, and more stable performance for frequent automotive repair tasks. Equipped with a dedicated drive board controller, the kit offers precise power management and motor control. The controller optimizes speed, torque, and /stop response, helping to protect the motor and improve overall working efficiency during tightening and loosening operations. The included speed control switch supports smooth and accurate speed adjustment according to your working needs. Easily switch between low and high speeds for different applications, such as light assembly work or high-torque bolt removal, enhancing operating comfort and control., Weight: 0.68673994613 Pounds, Manufacturer: Wesafrae