Greenworks 24V Cordless Impact Wrench, Battery Not Included 3800302A Powered by a 24-volt Lithium-Ion Battery (not included) 0.5-inch Square coupler makes it compatible with impact rated sockets High torque output produces 225 feet pounds of torque for heavy-duty applications Compact and lightweight design allows for greater ease of use Built-in LED light illuminates dark areas for better visibility