Features and Benefits:�7/16" Hex Shank�Custom alloy 76 steel maximizes resistance to wear and shock�Designed for use with Shockwave™ Lineman's 3 in 1 Utility Sockets�Fits all 1/2" drive accessories�Includes 1 Piece�Most Durable. Better Retention.�Optimized shock zone geometry absorbs peak torque and prevents breaking�Optimized Shockzone�Pin Detent Design�Pin detent for better retentionThe Milwaukee SHOCKWAVE™ lineman's 7/16 in. hexto 1/2 in. square adapter is the most durable adapter on the market and it's pin detent allows for better retention to the socket. The adapter features an optimized Shockzone™ that absorbs peak torque and prevents the adapter from breaking, providing up to 30X life. The adapter is made from Custom Alloy76™ steel, which maximizes it's resistance to wear and shock. The 7/16 in. hex shanks allows the adapter to lock into all 7/16 in. quick connect chucks.