Set of three 1/2-in. drive sockets. Lengths: 2 1/2 in., 5 in. and 10 in. Stanley drive tools are forged from high-quality steel and finished in high-polish chrome. Stanley sockets feature our "Max-Drive" design, a unique radius corner design which provides 15% more torque to tighten fasteners easily and simplify the turning of rounded corners. Helps reduce fastener wear by minimizing contact on outer 5% of fastener; helping increase life expectancy. Helps reduce slipping on frozen or rusted fasteners. All Stanley ratchets and sockets are designed to meet or exceed ANSI specifications. Also available in 3/8 in.