Our SHOCKWAVE Impact Duty™ 1/2 Drive 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. Our dual-hole design and ring groove allow for easy socket attachment and removal. This set is optimized to get every job done. All SHOCKWAVE Impact Duty™ Sockets and Extensions are backed by our Lifetime Guarantee and meet ASME industry standards.