The Milwaukee Shockwave Impact Duty 1 in. Drive 33mm Deep 6 Point Socket features the boldest, longest-lasting markings and extreme impact durability in high torque applications. The stamped and ink-filled size markings enable you to select the right socket every time throughout the life of the socket. Milwaukee engineered these 6-point sockets with high-strength forged steel for optimized performance in heavy-duty applications, and a non-slip hex geometry prevents fastener rounding. The dual-hole design and ring groove allow for easy socket attachment and removal. All Milwaukee Shockwave Impact Duty Sockets are backed by their Lifetime Guarantee and meet ASME industry standards.