The EF-Series electric torque screwdriver increases productivity and enhances product quality through precision torque control and user comfort. The electric screwdriver automatically shuts off once the preset torque is achieved. The assembly power tools are recommended for tightening small screws, nuts and bolts. The electric screwdrivers is NRTL certified from TUV America, Inc. The certification ensures manufacturing companies that they are purchasing and operating a quality and safe tool for its operators.