Klein Tools' Penta Hex Flip Socket with Adapter is a must have for all tradesmen. The 13/16-Inch Penta and 3/4-Inch Hex Flip Socket combines two of the most common socket sizes into one tool. The socket is designed for use with an impact driver including Klein's Impact Wrench (Cat. Nos. BAT20CW, BAT20CW1). The 1/2 to 1/2-Inch square adapter includes a ball detent to help prevent unintentional separation from the socket. Flip between 3/4-Inch Hex and 13/16-Inch Penta sizes. 1/2 to 1/2-Inch adapter with rust resistance finish. Easily switch impact socket sizes without removing your gloves. 1/2 to 1/2-Inch square adapter has a black manganese phosphate finish for rust resistance. Includes a ball detent that helps prevent unintentional separation of adapter and socket. Socket engineered for use with impact drivers including Klein's 1/2-Inch Compact Impact Wrench (Cat. Nos. BAT20CW, BAT20CW1). Color coded to easily identify the size of the socket.