PurposePrototype wrench used to install electrical connectorsWrench End TypeOpen Side TeethWrench Body TypeStraightWrench VariationStandardDrive TypeInternal SquareInner Tooth to Tooth Distance0.736Number of Contact Points2Spanner ShapeC-TypeHead Thickness0.19Inner Diameter0.80Used WithTorque wrenchDrive Size3/8Tooth Protrusion0.032Tooth Width0.095Center-to-Center Distance1.49Head Outer Diameter1.15