Stanley 85-891 3/8-Inch Drive Round Head Quick Release Ratchet Stanley ratchets and accessories are designed to meet or exceed ANSI specifications Forged from high-quality steel and finished in high-polish chrome 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 Limited Lifetime Warranty