DEWALT DCF889HM2 20-volt MAX Lithium Ion 1/2-Inch High Torque Impact Wrench with Hog Ring Plastic / Metal Imported Hog ring anvil for quick & easily change sockets 400 ft.-lbs of maximum torque to perform a wide range of heavy-duty fastening applications XR Li-Ion batteries with fuel gauge provide 33% more capacity over standard packs Variable speed trigger with electric brake provides user improved control