Features and Benefits:�1/2" Square Drive�Deep well for extended reach�Designed for use with 13/16" Penta Bolts�Features a pin detent hole for locking onto pin detent tools and adapters�Radius corners drive on the flats reducing rounding and stripping of the bolts�The Shockwave Lineman's 13/16" Penta Socket is engineered to be the most durable, best performing penta socket on the market�Thin Wall Design for tight accessThe SHOCKWAVE™ lineman�s 13/16 in. Penta socket is engineered to be the most durable and best performing Penta socket on the market. The deep well, thin wall design allows for extended reach and access to recessed bolts. It�s radius corners design drives on the flats of the bolts, reducing stripping and breaking. The socket features a 1/2 in. square drive for use with all 1/2 in. drive impact wrenches and adapters while the pin detent hole allows the socket to be locked onto pin detent style wrenches and adapters for a more secure hold.