The DEWALT 20-Volt Max Lithium-Ion 1/2 in. High Torque Impact Wrench with Detent Pin (Tool-Only) is designed for mechanical contractors, plumbers, automotive mechanics, maintenance and repair professionals and remodelers who demand a tool for difficult fastening applications, such as driving and removing fasteners or nuts and bolts in wood, metal and concrete. Powerful with 400 ft. lbs. of torque, this impact wrench also has a variable speed trigger with an electric brake for added control and delivers 1500 RPM and 2300 IPM. Comfortable to use and easy to control with its ergonomic handle, this impact wrench is also strong and reliable for long-lasting use on the jobsite or for DIY projects around your home.