ABN 1/2 inch Drive Flip Lug Nut Impact Socket 4-Piece Set - 17mm, 19mm, 3/4in, 1 OLN1_A5PLP67

Both ends have a hex of different sizes. In the middle of each flip socket is a 1/2 drive tang that you slip the included extension into the opposite end to the middle of the socket to hold it. This is useful for the short/standard anvil stub on most impact guns. Durable: Drop forged, heat treated chrome molybdenum steel (CR-MO); Black oxide finish extension bar; Black electro plated finished sockets Contents: Package includes (3) sockets + (1) extension bar + (1) carrying case