This comprehensive 81-piece master set features our most popular 3/8 in. drive 6-point sockets and universals in both metric and fractional sizes. Engineered from high-quality chrome-molybdenum steel, these sockets are designed to transfer pressure toward the thicker sections for maximum strength during impact use.

• Comprehensive 81-piece master set including metric sizes up to 22 mm and fractional sizes up to 1 in.
• Constructed from high-quality chrome-molybdenum steel for industrial-grade durability.
• Engineered to transfer pressure from the thinnest part of the socket wall toward the thicker section for increased strength.
• Specifically designed for use with impact tools to meet modern industrial specifications.
• Includes essential accessories: 3 in. extension, universal joint, and a 1/4 in. hex to 3/8 in. square adapter.