Our SHOCKWAVE™ 1/4" Hex to 1/2" Square Socket Adapter 10-Pack allows impact sockets to be used with impact drivers. The MILWAUKEE® SHOCKWAVE Impact Duty™ socket adapters are made from a proprietary steel, heat treated to control hardness and provide durability with up to 50X life. The socket adapter has a heavy-duty construction for fastening capabilities in impacts, built to withstand frequent use and save you the expense of having to buy an impact wrench. Milwaukee hex-to-square socket adapters are engineered for maximum durability and long-lasting use. This impact socket adapter is designed for use with impact drivers and impact sockets.