... , power supply , electric power tool , electric tool , screw driver , power tool , screwdrivers , screw driver , electrice power tool , tools , screw drivers , tool , ... direction can be tested.There is need to change screw driver head. 3. The torque sensor is attached, which can ... is convenient to select the output mode of value.5. RS-232C output terminal is attached, which can be conn-ected to ...