Milwaukee® SHOCKWAVE Impact duty™ sockets are engineered for extreme durability and up to 10X life. Made from proprietary steel and heat treated to control hardness, the SHOCKWAVE Impact duty™ sockets feature thinwall construction for access in tight spaces and 6-point deep wells for unyielding bit engagement. Broadly targeting cordless users, the SHOCKWAVE Impact duty™ accessory line is not only ideal for heavy-duty impact applications, but delivers a full system solution for all the user's drilling and fastening needs.