[Size across flats 11.0mm]

[Size across flats 6.0mm]

[Opposite side dimension 9.0mm]

[Size across flats 13.0mm]

[Size across flats 5.5mm]

[Size across flats 7.0mm]

[Size across flats 12.0mm]

[Size across flats 4.5mm]

This socket is an opposite hexagon type type socket. Chrome plated finish. Opposite side dimensions: 0.18 inches (4.5 mm). Insertion angle: 0.25 inches (6.35 mm). Total length: 0.9 inches (23.0 mm). Socket for cyclop ratchets. Special tool steel.