Ken-Tool 30119 5 Pc. Thinwall Flip Socket Set

One end is a standard 6-point socket for everyday use Flip socket over and you have a 6-point socket of larger size Socket Sizes: 19 mm - 21 mm socket 3/4" - 13/16" socket 7/8" - 15/16" socket 17 mm - 19 mm socket 3" extension