Milwaukee Shockwave Impact Duty Socket Set features the boldest, longest-lasting markings and extreme impact durability in high torque applications. The stamped and ink-filled size marking enables you to select the right socket every time throughout the life of the socket. Engineered with high-strength forged steel for optimized performance in heavy-duty applications. The non-slip hex geometry prevents fastener rounding. The Milwaukee dual-hole design and ring groove allow for easy socket attachment and removal. Sets can be kept organized in the included Milwaukee Packout Organizer with a clear top for easy identification of parts at a glance. The Packout Organizer is part of Milwaukee Packout Modular Storage System, allowing for customization of storage systems to easily transport and organize tools and accessories. All Milwaukee Shockwave Impact Duty Sockets and Extensions are backed by meet ASME industry standards.