IVY Classic hex to square socket adapters allow drills and impact drivers to fit standard sockets to drive hex-head screws, bolts and nuts. These socket adapters are designed to withstand the high torque (rotational force) of impact drivers, impact plus (registered trademark). made from high-quality chrome vanadium steel for extra strength and durability. The ball and spring retention system allows for quick-change applications. Ivy Classic Industries manufactures an extensive line of hex to square socket adapters in a variety of sizes and lengths. Ivy Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools.