Trucks and heavy equipment Crane This is a cordless torque screwdriver from the Dongcheng brand, powered by a 20V battery. Key Features: The device features a brushless motor to enhance efficiency and durability. Power and Speed: It boasts a strong torque of up to 208 Nm and variable speeds for controlling tightening and loosening tasks. Accessories: It often comes with two 4.0 Ah batteries to ensure longer working periods.