1/2-inch cordless impact wrench is compatible with Dewalt 20v batteries, including DCB206, DCB205, DCB181, DCB182, DCB200 and more (Note: this product does not include battery,recommended to use more than 4AH battery). Ideal for both professional and DIY tasks, it’s designed for use on job sites and outdoor projects, offering flexibility and reliable performance. With built-in low-voltage protection, it ensures safe, consistent operation. The reverse auto-stop feature stops the wrench automatically once the bolt is loosened, preventing over-torqueing and protecting threads and surrounding materials. It ensures safety and precision, perfect for delicate tasks like automotive repairs, machinery maintenance, and assembly. Just toggle the forward/reverse switch (marked with a reverse arrow)on the wrench, and you're ready to go.