Our SHOCKWAVE™ Impact Duty™ 3/8 in drive six point socket sets feature 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. These sockets are engineered with high-strength forged steel for optimized performance in heavy-duty applications. The non-slip hex geometry prevents fastener rounding and a dual-hole design and ring groove allow for easy socket attachment and removal. The storage cases are impact-resistant and nest together for easy stacking and storage. All Milwaukee SHOCKWAVE™ Impact Duty™ sockets backed by a lifetime guarantee and meet ASME industry standards.