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. Sets feature removable trays that are compatible with MILWAUKEE PACKOUT(TM) Organizers and fit in tool chest drawers. The non-slip hex geometry prevents fastener rounding. The Milwaukee dual-hole design and ring groove allow for easy socket attachment and removal. The cases are impact-resistant and nest together for easy stacking and storage. All Milwaukee SHOCKWAVE Impact Duty Sockets and Extensions are backed by Milwaukee's Lifetime Guarantee and meet ASME industry standards.