The MILWAUKEE® 19-Piece SHOCKWAVE Impact Duty™ 1/2" Drive SAE Deep 6 Point Socket Set and the MILWAUKEE® 43-Piece SHOCKWAVE Impact Duty™ 3/8" Drive SAE and Metric Deep 6 Point Socket Set features the boldest, longest-lasting markings and extreme impact durability in high torque applications. The stamped and ink-filled size marking enables users 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, 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 SHOCKWAVE Impact Duty™ Sockets backed by a Lifetime Guarantee and meet ASME industry standards.