PurposeTo remove or install spanner wrench fittingsWrench End TypeFace PinWrench Body TypeStraightWrench VariationInternal HexDrive TypeInternal SquarePin Diameter1/8Pin Protrusion Length0.13Number of Contact Points2Spanner ShapeSocketOverall Length1.66Center Pin to Center Pin Distance0.708Used WithTorque wrenchDrive Size3/8Wrench Size7/8Opening Shape12