DeWalt DWMT19239 19Pc 1/2" Drive Impact Deep Socket Set, 3/8 - 1-1/2"DeWalt DWMT19239 Description This DeWalt 19 Piece 1 2" Drive Deep Impact Socket Set 6 Pt (DWMT19239) offers a wide variety of impact sockets for any user need. This O ring and retaining pin compatible set is made from heat treated steel and features laser etched markings. These sockets feature Dewalt DirectTorque technology that allows greater contact with the flat surface areas of fasteners creating greater torque, and prevents rounding of fasteners.