Ratchet handles are ergonomically designed and have an easy-to-use, thumb-operated reverse-switch mechanism. Sockets and extensions remain locked onto the drive until disengaged with an easy-to-reach, low-profile quick-release button. Stanley sockets feature our Max-Drive design, a unique radius corner design that provides 15 percentage more torque than standard sockets to tighten fasteners easily and simplify the turning of rounded corners. Max-Drive helps reduce fastener wear by minimizing contact on the outer 5 percentage of the fastener, helping to increase life expectancy than standard sockets. Max-Drive helps reduce slipping on frozen or rusted fasteners. All Stanley ratchets, sockets and wrenches are manufactured globally to Stanley specifications, meeting and often exceeding ANSI specification.